1 \startsection[seccio:recompte-agrupacio-i-parametres-centralitzacio, title={Recompte, agrupació i {\em perfil} de les dades}]
3 \startsubject[title={Preguntes}]
5 \startexercici[reference=exer:calcul-moda, title={càlcul paràmetres centralització}] Calculeu la moda, la mitjana i la mediana dels conjunts de dades següents:
6 \startitemize[a, columns, packed]
7 \item \startplacetable[location={force, none}, reference=taula:estad-1, title={Dades}]
8 \bTABLE[setups={table6:header, table6:frame, table6:style}]
9 \bTR \bTD 5, 1, 2, 3, 0, 1 \eTD \eTR
13 \item \startplacetable[location={force, none}, reference=taula:estad-1, title={Dades}]
14 \bTABLE[setups={table6:header, table6:frame, table6:style}]
15 \bTR \bTD 2, 2, 0, 2, 0, 1, 1, 0, 2, 2 \eTD \eTR
19 \item \startplacetable[location={force, none}, reference=taula:estad-1, title={Dades}]
20 \bTABLE[setups={table6:header, table6:frame, table6:style}]
21 \bTR \bTD 10, 5, 10, 2, 10 \eTD \eTR
25 \item \startplacetable[location={force, none}, reference=taula:estad-1, title={Dades}]
26 \bTABLE[setups={table6:header, table6:frame, table6:style}]
27 \bTR \bTD 2, 3, 2, 3, 2, 3 \eTD \eTR
31 \item \startplacetable[location={force, none}, reference=taula:estad-1, title={Dades}]
32 \bTABLE[setups={table6:header, table6:frame, table6:style}]
33 \bTR \bTD 2, 3, 2, 3, 2\eTD \eTR
37 \item \startplacetable[location={force, none}, reference=taula:estad-1, title={Dades}]
38 \bTABLE[setups={table6:header, table6:frame, table6:style}]
39 \bTR \bTD 1, 0, 1, 2, 1, 0, -1, 2, -5, 2 \eTD \eTR
47 \startexercici[reference=exer:dades-discretes, title={Dades discretes o qualitatives}] Donades aquestes dades:
51 \item El nombre de cosins d'un petit grup de persones
53 \startplacetable[location={force, none}, reference=taula:estadistica-1, title={Dades}]
54 \bTABLE[setups={table6:header, table6:frame, table6:style}]
55 \bTR \bTD 1, 2, 4, 2, 1, 5, 6, 1, 5, 6 \eTD \eTR
59 \item Notes de Català d'una classe
60 \startplacetable[location={force, none}, reference=taula:estadistica-2, title={Notes de Català d'una classe}]
61 \bTABLE[setups={table6:header, table6:frame, table6:style}]
64 6, 6, 6, 6, 6, 6, 7, 7, 7, 8,
67 5, 5, 5, 5, 5, 5, 10, 9, 9, 8,
72 0, 1, 2, 1, 2, 2, 3, 3, 4, 3,
75 3, 4, 3, 4, 4, 4, 5, 4, 4, 5.
81 \item El nombre d'errors ortogràfics en un text que apareixen línia per línia
82 \startplacetable[location={force, none}, reference=taula:estadistica-3, title={Anàlisi d'un text, cercant línia per línia els errors ortogràfics que apareixen}]
83 \bTABLE[setups={table6:header, table6:frame, table6:style}]
121 \item El color de camiseta d'un grup d'individus:
123 \startplacetable[location={force, none}, reference=taula:estadistica-4, title={Colors de les camisetes}]
124 \bTABLE[setups={table6:header, table6:frame, table6:style}]
125 \bTR \bTD Vermell, \eTD \bTD Verd, \eTD \bTD Blau, \eTD \bTD Verd, \eTD \bTD Groc, \eTD \bTD Vermell, \eTD \eTR
126 \bTR \bTD Vermell, \eTD \bTD Blau, \eTD \bTD Blau, \eTD \bTD Groc, \eTD \bTD Blau, \eTD \bTD Blau, \eTD \eTR
127 \bTR \bTD Verd, \eTD \bTD Blau, \eTD \bTD Marró, \eTD \bTD Negre, \eTD \bTD Vermell, \eTD \bTD Blau, \eTD \eTR
131 \item El nombre de germans dels habitants d'un poble
133 \startplacetable[location={force, none}, reference=taula:estadistica-5, title={Nombre de germans dels habitants d'un poble}]
134 \bTABLE[setups={table3:header, table3:frame, table3:style}]
135 \bTR \bTD Germans \eTD \bTD 0 \eTD \bTD 1 \eTD \bTD 2 \eTD \bTD 3 \eTD \eTR
136 \bTR \bTD[width=3cm] Freqüència \eTD \bTD 60 \eTD \bTD 100 \eTD \bTD 150 \eTD \bTD 90 \eTD \eTR
140 \item El nombre de televisors d'un grup de persones
142 \startplacetable[location={force, none}, reference=taula:estadistica-6, title={Nombres}]
143 \bTABLE[setups={table6:header, table6:frame, table6:style}]
144 \bTR \bTD 2, 1, 1, 0, 2, \eTD \bTD 2, 1, 1, 1, 5, \eTD \bTD 2, 1, 1, 3, 2, \eTD \bTD 1, 2, 1, 2, 1. \eTD \eTR
148 \item El nombre d'assignatures aprovades d'una classe de 4t d'ESPA
150 \startplacetable[location={force, none}, reference=taula:estadistica-7, title={Notes de Matemàtiques}]
151 \bTABLE[setups={table6:header, table6:frame, table6:style}]
152 \bTR \bTD 0, 1, 6, 4, 5, 4, 5, 3, 4, 2, \eTD \bTD 1, 0, 2, 6, 5, 5, 4, 3, 2, 1, \eTD \eTR
153 \bTR \bTD 1, 5, 2, 0, 6, 1, 6, 3, 6, 5, \eTD \bTD 0, 2, 3, 5, 6, 6, 6, 5, 5, 6 \eTD \eTR
158 \item El nombre de mòbils que han tengut un grup de persones durant la seva vida s'ha representat en el diagrama de barres següent.
160 \startplacefigure[location={force, none}, reference=taula:estadistica-8, title={Diagrama de barres}]
161 \bTABLE[setups={table6:header, table6:frame, table6:style}]
163 \starttikzpicture[scale=0.75]
164 \draw[help lines,color=gray!20] (-0.1,-0.1) grid (9.2,9);
165 \draw (-0.2,0) -- (9.2,0) node[right] {$x_i$};
166 \draw (0,-0.2) -- (0,9.2) node[above] {$f_i$};
168 \foreach \x in {1,...,8}
170 \draw (\x, -0.1 cm) -- (\x, 0.1 cm);
171 \draw (\x, -0.3 cm) node {$\x$};
174 \draw (-0.1 cm,1) -- (0.1 cm,1);
175 \draw (-0.3 cm,1) node {$1$};
177 \draw (-0.1 cm,2) -- (0.1 cm,2);
178 \draw (-0.3 cm,2) node {$2$};
180 \draw (-0.1 cm,3) -- (0.1 cm,3);
181 \draw (-0.3 cm,3) node {$3$};
183 \draw (-0.1 cm,4) -- (0.1 cm,4);
184 \draw (-0.3 cm,4) node {$4$};
186 \draw (-0.1 cm,5) -- (0.1 cm,5);
187 \draw (-0.3 cm,5) node {$5$};
189 \draw (-0.1 cm,6) -- (0.1 cm,6);
190 \draw (-0.3 cm,6) node {$6$};
192 \draw (-0.1 cm,7) -- (0.1 cm,7);
193 \draw (-0.3 cm,7) node {$7$};
195 \draw (-0.1 cm,8) -- (0.1 cm,8);
196 \draw (-0.3 cm,8) node {$8$};
198 \draw (-0.1 cm,9) -- (0.1 cm,9);
199 \draw (-0.3 cm,9) node {$9$};
201 \draw[ultra thick, color=blue] (1,0) -- (1,2);
202 \draw[ultra thick, color=blue] (2,0) -- (2,3);
203 \draw[ultra thick, color=blue] (3,0) -- (3,5);
204 \draw[ultra thick, color=blue] (4,0) -- (4,8);
205 \draw[ultra thick, color=blue] (5,0) -- (5,8);
206 \draw[ultra thick, color=blue] (6,0) -- (6,3);
207 \draw[ultra thick, color=blue] (7,0) -- (7,2);
208 \draw[ultra thick, color=blue] (8,0) -- (8,1);
215 \item El nombre de dies de pluja per setmana a la ciutat de Londres durant 54 setmanes (un any) són:
217 \startplacetable[location={force, none}, reference=taula:estadistica-9, title={Diagrama de barres}]
218 \bTABLE[setups={table6:header, table6:frame, table6:style}]
219 \bTR \bTD 0, 3, 4, 7, 4, \eTD \bTD 6, 5, 0, 1, 4,\eTD \bTD 3, 4, 5, 5, 7, \eTD \bTD 7, 1, 7, 0, 7,\eTD \eTR
220 \bTR \bTD 1, 7, 4, 2, 5, \eTD \bTD 7, 6, 3, 3, 7,\eTD \bTD 2, 2, 2, 2, 5, \eTD \bTD 4, 2, 1, 0, 1,\eTD \eTR
221 \bTR \bTD 6, 2, 1, 5, 3, \eTD \bTD 0, 6, 5, 2, 2,\eTD \bTD[align=flushleft] 0, 0, 0, 5. \eTD \bTD \eTD \eTR
226 \item Els punts d'un equip de bàsquet juvenil
228 \startplacetable[location={force, none}, reference=taula:estadistica-10, title={Punts d'un equip}]
229 \bTABLE[setups={table6:header, table6:frame, table6:style}]
230 \bTR \bTD 30, 80, 50, 60, 70, \eTD \bTD 80, 90, 10, 40, 40, \eTD \bTD 40, 50, 20, 20, 30,\eTD \bTD 10, 20, 50, 20, 60, \eTD \eTR
231 \bTR \bTD 90, 10, 20, 50, 90, \eTD \bTD 40, 60, 70, 30, 20, \eTD \bTD 10, 50, 80, 40, 60,\eTD \bTD 60, 70, 80, 20, 40 \eTD \eTR
236 \item El nombre de néts que tenen un grup de persones escollides a l'atzar són:
238 \startplacetable[location={force, none}, reference=taula:estadistica-11, title={Diagrama de barres}]
239 \bTABLE[setups={table6:header, table6:frame, table6:style}]
240 \bTR \bTD 2, 4, 11, 6, 9, \eTD \bTD 6, 4, 3, 2, 1,\eTD \bTD 0, 2, 3, 0, 4, \eTD \eTR
241 \bTR \bTD 5, 6, 7, 6, 8,\eTD \bTD 7, 0, 2, 3, 4, \eTD \bTD 4, 6, 5, 6, 6. \eTD \eTR
246 \item El nombre de llibres per mes que han llegit un grup de persones és:
248 \startplacetable[location={force, none}, reference=taula:estadistica-12, title={Dades}]
249 \bTABLE[setups={table6:header, table6:frame, table6:style}]
250 \bTR \bTD 3, 2, 4, 9, 8, 1, 0, 2, 4, 1, 8, 6, 3, 4, 0, 7, 3, 2, 4, 5, 2, 5, \eTD \eTR
251 \bTR \bTD 6, 5, 4, 9, 2, 5, 7, 4, 1, 8, 6, 1, 5, 7, 1, 3, 0, 5, 0, 2, 1, 5, 5 \eTD \eTR
255 \item La talla de sabata que duen una classe de primària és:
257 \startplacetable[location={force, none}, reference=taula:estadistica-13, title={Nombre de sabata}]
258 \bTABLE[setups={table3:header, table3:frame, table3:style}]
259 \bTR \bTD Valor \eTD \bTD 26 \eTD \bTD 28 \eTD \bTD 30 \eTD \bTD 32 \eTD \eTR
260 \bTR \bTD[width=3cm] Freqüència \eTD \bTD 6 \eTD \bTD 7 \eTD \bTD 4 \eTD \bTD 4 \eTD \eTR
264 \item Hores d'estudi setmanals d'un grup d'alumnes són:
266 \startplacetable[location={force, none}, reference=taula:estadistica-14, title={Gols d'un jugador de futbol}]
267 \bTABLE[setups={table6:header, table6:frame, table6:style}]
268 \bTR \bTD 10, \eTD \bTD 1, \eTD \bTD 2, \eTD \bTD 5, \eTD \bTD 9, \eTD \bTD 4, \eTD\bTD 6, \eTD\bTD 7, \eTD\bTD 3, \eTD\bTD 2, \eTD\bTD 1, \eTD\bTD 5, \eTD\bTD 8, \eTD\bTD 4, \eTD\bTD 6, \eTD\eTR
269 \bTR \bTD 3, \eTD\bTD 8, \eTD\bTD 5, \eTD\bTD 6, \eTD\bTD 7, \eTD\bTD 8, \eTD\bTD 9, \eTD\bTD 1, \eTD\bTD 4, \eTD\bTD 4, \eTD\bTD 4, \eTD\bTD 5, \eTD\bTD 2, \eTD\bTD 2, \eTD\bTD 3, \eTD\eTR
270 \bTR \bTD 6, \eTD\bTD 7, \eTD\bTD 8, \eTD\bTD 2, \eTD\bTD 4, \eTD\bTD 1, \eTD\bTD 2, \eTD\bTD 5, \eTD\bTD 2, \eTD\bTD 6. \eTD\eTR
274 \item El nombre de places hoteleres, segons el nombre d'estrelles, a les Illes Balears l'any 2020 són \cite{statista-hotels-per-estrella}:
276 \startplacetable[location={force, none}, reference=taula:estadistica-15, title={Dades}]
277 \bTABLE[setups={table3:header, table3:frame, table3:style}]
278 \bTR \bTD Estrelles: \eTD \bTD 1 \eTD \bTD 2 \eTD \bTD 3 \eTD \bTD 4 \eTD \bTD 5 \eTD \eTR
279 \bTR \bTD[width=4cm] Hotels (milers): \eTD \bTD 1 \eTD \bTD 5 \eTD \bTD 51 \eTD \bTD 106 \eTD \bTD 11 \eTD \eTR
286 \startitemize[A, packed]
288 \starthead{Recompte de dades}
290 \startitemize[a,packed]
291 \item Quantes dades hi ha?
292 \item Escriviu la taula de freqüències
293 \item Calculeu els percentatges d'aparició de cada dada
294 \item Podeu extrapolar les freqüències amb una mostra de 3600 dades?
298 \starthead{Paràmetres de centralització}
300 \startitemize[a, packed]
301 \item Calculeu la moda
302 \item Calculeu la mitjana
303 \item Calculeu la mediana
307 \starthead{Quartils i percentils}
309 \startitemize[a, packed]
310 \item Calculeu els quartils $Q_1$ i $Q_3$
311 \item Calculeu els percentils $p_{90}$ i $p_{60}$
315 \starthead{Interpreteu els paràmetres anteriors}
322 \startexercici[reference=exer:dades-continues, title={Dades contínues o moltes dades discretes}] Donades aquestes dades:
326 \item La mida d'una sèrie de pedres d'un torrent (en cm), separats per punt i comes, és:
328 \startplacetable[location={force, none}, reference=taula:estadistica-16, title={Mida pedres d'un torrent}]
329 \bTABLE[setups={table6:header, table6:frame, table6:style}]
330 \bTR \bTD 2; \eTD \bTD 2,3; \eTD \bTD 4; \eTD \bTD 2,1; \eTD \bTD 1,2; \eTD \bTD 5; \eTD \bTD 2,1; \eTD \bTD 3; \eTD \bTD 2,4; \eTD \bTD 2,2; \eTD \eTR
331 \bTR \bTD 1,9; \eTD \bTD 1,95; \eTD \bTD 2,01; \eTD \bTD 2,51; \eTD \bTD 2,67; \eTD \bTD 2,6; \eTD \bTD 2,7; \eTD \bTD 2,8; \eTD \bTD 2,55; \eTD \bTD 2,56; \eTD \eTR
332 \bTR \bTD 8; \eTD \bTD 2,3; \eTD \bTD 2,02; \eTD \bTD 1,99; \eTD \bTD 1,89; \eTD \bTD 3,4; \eTD \bTD 2,1; \eTD \bTD 2,02; \eTD \bTD 2,78; \eTD \bTD 2,09; \eTD \eTR
333 \bTR \bTD 1,22; \eTD \bTD 2,03; \eTD \bTD 2,4; \eTD \bTD 3,1; \eTD \bTD 2,22; \eTD \bTD 3,1; \eTD \bTD 3,1; \eTD \bTD 2,3; \eTD \bTD 2,3; \eTD \bTD 2,03; \eTD \eTR
334 \bTR \bTD 2,4; \eTD \bTD 3,2; \eTD \bTD 5; \eTD \bTD 2,5; \eTD \bTD 1,3; \eTD \bTD 1; \eTD \bTD 4,1; \eTD \bTD 3,3; \eTD \bTD 2,7; \eTD \bTD 2,92 \eTD \eTR
338 \item El pes d'un grup de nounats de 42 setmanes és:
340 \startplacetable[location={force, none}, reference=taula:estadistica-17, title={Pes dels nousnats de 42 setmanes}]
341 \bTABLE[setups={table6:header, table6:frame, table6:style}]
342 \bTR \bTD 3200, \eTD \bTD 3500, \eTD \bTD 3300, \eTD \bTD 3250, \eTD \bTD 3620, \eTD \bTD 3800, \eTD \bTD 3910, \eTD \bTD 3100, \eTD \bTD 2990, \eTD \bTD 3100, \eTD \eTR
343 \bTR \bTD 3300, \eTD \bTD 3500, \eTD \bTD 3600, \eTD \bTD 3450, \eTD \bTD 3510, \eTD \bTD 3610, \eTD \bTD 2980, \eTD \bTD 2700, \eTD \bTD 3150, \eTD \bTD 3350, \eTD \eTR
344 \bTR \bTD 4000, \eTD \bTD 3400, \eTD \bTD 3450, \eTD \bTD 3520, \eTD \bTD 3480, \eTD \bTD 3300, \eTD \bTD 3120, \eTD \bTD 2950, \eTD \bTD 2750, \eTD \bTD 3230, \eTD \eTR
345 \bTR \bTD 3300, \eTD \bTD 3450, \eTD \bTD 3540, \eTD \bTD 3100, \eTD \bTD 3220, \eTD \bTD 3100, \eTD \bTD 3120, \eTD \bTD 3300, \eTD \bTD 3330, \eTD \bTD 3030, \eTD \eTR
346 \bTR \bTD 2400, \eTD \bTD 3200, \eTD \bTD 4500, \eTD \bTD 3500, \eTD \bTD 3330, \eTD \bTD 3100, \eTD \bTD 3210, \eTD \bTD 3323, \eTD \bTD 3450, \eTD \bTD 2920 \eTD \eTR
350 \item L'altura d'un grup de persones majors de 16 anys (expressades en centímetres) \cite{ine-altura-gent} és:
352 \startplacetable[location={force, none}, reference=taula:estadistica-16c, title={Altura d'un grup de persones}]
353 \bTABLE[setups={table6:header, table6:frame, table6:style}]
354 \bTR \bTD 161, \eTD \bTD 151, \eTD \bTD 161, \eTD \bTD 157, \eTD \bTD 163, \eTD \bTD 160, \eTD \bTD 160, \eTD \bTD 160, \eTD \bTD 154, \eTD \bTD 165,\eTD \eTR
355 \bTR \bTD 166, \eTD \bTD 167, \eTD \bTD 168, \eTD \bTD 169, \eTD \bTD 170, \eTD \bTD 160, \eTD \bTD 170, \eTD \bTD 170, \eTD \bTD 170, \eTD \bTD 155, \eTD \eTR
356 \bTR \bTD 148, \eTD \bTD 167, \eTD \bTD 152, \eTD \bTD 170, \eTD \bTD 170, \eTD \bTD 168, \eTD \bTD 168, \eTD \bTD 170, \eTD \bTD 169, \eTD \bTD 170, \eTD \eTR
357 \bTR \bTD 170, \eTD \bTD 170, \eTD \bTD 171, \eTD \bTD 172, \eTD \bTD 165, \eTD \bTD 160, \eTD \bTD 160, \eTD \bTD 158, \eTD \bTD 155, \eTD \bTD 172, \eTD \eTR
358 \bTR \bTD 174, \eTD \bTD 150, \eTD \bTD 175, \eTD \bTD 174, \eTD \bTD 165, \eTD \bTD 174, \eTD \bTD 175, \eTD \bTD 175, \eTD \bTD 175, \eTD \bTD 175, \eTD \eTR
359 \bTR \bTD 174, \eTD \bTD 176, \eTD \bTD 153, \eTD \bTD 177, \eTD \bTD 165, \eTD \bTD 178, \eTD \bTD 178, \eTD \bTD 178 \eTD \bTD 160, \eTD \bTD 179 \eTD \eTR
360 \bTR \bTD 178 \eTD \bTD 178 \eTD \bTD 179 \eTD \bTD 181 \eTD \bTD 180 \eTD \bTD 164, \eTD \bTD 180, \eTD \bTD 182, \eTD \bTD 184, \eTD \bTD 186, \eTD \eTR
361 \bTR \bTD 185, \eTD \bTD 188, \eTD \bTD 190, \eTD \bTD 149, \eTD \bTD 164, \eTD \bTD 158, \eTD \bTD 192, \eTD \bTD 160, \eTD \bTD 200 \eTD \bTD 210 \eTD \eTR
362 \bTR \bTD 199, \eTD \bTD 188, \eTD \bTD 154, \eTD \bTD 181, \eTD \bTD 165, \eTD \bTD 158, \eTD \bTD 165, \eTD \bTD 179, \eTD \bTD 164, \eTD \bTD 163, \eTD \eTR
363 \bTR \bTD 162, \eTD \bTD 164, \eTD \bTD 155, \eTD \bTD 165, \eTD \bTD 159, \eTD \bTD 159, \eTD \bTD 160, \eTD \bTD 164, \eTD \bTD 165, \eTD \bTD 162, \eTD \eTR
367 \item Els dies des del darrera excursió a la muntanya d'un grup de persones són:
369 \startplacetable[location={force, none}, reference=taula:estadistica-18, title={Dies des de la darrera excursió}]
370 \bTABLE[setups={table6:header, table6:frame, table6:style}]
371 \bTR \bTD 1, 0, 40, 15, 90, 400, 3, 10, 25, 100, 120, 600, 365, 480, 120, \eTD \eTR
372 \bTR \bTD 7230, 320, 210, 490, 50, 20, 58, 65, 50, 45, 90, 25, 500, 75, \eTD \eTR
373 \bTR \bTD 40, 10, 80, 65, 10, 50, 70, 15, 30, 0, 56, 120, 200, 10, 50, 50 \eTD \eTR
377 \item L'edat de l'alumnat d'ESPA d'un centre d'adults ubicat a Palma l'any 2023 és la següent:
379 \startplacetable[location={force, none, split}, reference=taula:estadistica-16b, title={Edat de l'alumnat ESPA al CEPA Camp Rodó l'any 2023}]
380 \bTABLE[setups={split=yes, table6:header, table6:frame, table6:style}]
381 \bTR \bTD 19, 18, 21, 26, 22, 22, 20, 21, 28, 18, 34, 31, 25, 18, 20, \eTD \eTR
382 \bTR \bTD 39, 18, 21, 22, 20, 21, 18, 46, 34, 18, 20, 23, 19, 23, 49, \eTD \eTR
383 \bTR \bTD 20, 20, 16, 21, 20, 19, 17, 21, 18, 40, 19, 52, 18, 18, 31, \eTD \eTR
384 \bTR \bTD 19, 18, 31, 18, 22, 31, 54, 35, 26, 28, 19, 22, 18, 49, 40, \eTD \eTR
385 \bTR \bTD 18, 22, 42, 55, 32, 45, 22, 20, 23, 39, 33, 30, 24, 33, 30, \eTD \eTR
386 \bTR \bTD 18, 30, 32, 18, 31, 44, 21, 18, 19, 20, 61, 28, 30, 21, 18, \eTD \eTR
387 \bTR \bTD 19, 18, 21, 37, 26, 20, 40, 22, 18, 22, 18, 22, 27, 18, 26, \eTD \eTR
388 \bTR \bTD 23, 19, 20, 23, 18, 22, 21, 17, 18, 24, 47, 19, 27, 41, 43, \eTD \eTR
389 \bTR \bTD 20, 17, 23, 18, 21, 29, 23, 40, 38, 19, 47, 18, 53, 18, 53, \eTD \eTR
390 \bTR \bTD 38, 21, 24, 20, 18, 47, 20, 18, 24, 21, 33, 34, 18, 17, 20, \eTD \eTR
391 \bTR \bTD 26, 18, 49, 21, 33, 19, 30, 36, 49, 33, 17, 52, 20, 19, 23, \eTD \eTR
392 \bTR \bTD 22, 27, 42, 26, 50, 21, 44, 37, 18, 21, 22, 20, 24, 17, 18, \eTD \eTR
393 \bTR \bTD 22, 25, 18, 17, 23, 34, 20, 23, 17, 18, 19, 18, 20, 43, 49, \eTD \eTR
394 \bTR \bTD 16, 16, 23, 19, 25, 18, 16, 21, 21, 26, 22, 18, 50, 18, 51, \eTD \eTR
395 \bTR \bTD 34, 18, 25, 23, 17, 62, 17, 19, 17, 23, 18, 21, 21, 17, 52, \eTD \eTR
396 \bTR \bTD 36, 33, 18, 20, 22, 17, 40, 22, 23, 22, 42, 21, 18, 22, 73, \eTD \eTR
397 \bTR \bTD 18, 47, 21, 22, 21, 19, 20, 44, 32, 58, 27, 25, 39, 18, 17, \eTD \eTR
398 \bTR \bTD 25, 21, 55, 18, 20, 20, 17, 19, 19, 19, 48, 17, 31, 46, 46, \eTD \eTR
399 \bTR \bTD 24, 21, 19, 21, 22, 18, 27, 16, 18, 18, 47, 18, 46, 59, 46, \eTD \eTR
400 \bTR \bTD 32, 20, 41, 18, 19, 45, 19, 20, 19, 19, 34, 20, 28, 19, 23, \eTD \eTR
401 \bTR \bTD 22, 18, 44, 19, 38, 19, 18, 19, 18, 18, 38, 47, 18, 30, 27, \eTD \eTR
402 \bTR \bTD 35, 20, 25, 60, 17, 21, 33, 30, 18, 22, 18, 27, 20, 22, 23, \eTD \eTR
403 \bTR \bTD 46, 19, 19, 28, 18. \eTD \eTR
411 \startitemize[A,packed]
412 \starthead{Intervals}
414 \startitemize[a, packed]
415 \item Agrupeu les dades en intervals en quatre intervals (si ho considereu apropiat podeu triar un altre nombre d'intervals segons l'amplitud de l'interval desitjada)
416 \item Trobeu la marca de classe de cada interval
420 \starthead{Paràmetres de centralització}
422 \startitemize[a, packed]
423 \item Calculeu la moda
424 \item Calculeu la mitjana
425 \item Calculeu la mediana
429 \starthead{ Quartils i percentils}
431 \startitemize[a, packed]
432 \item Calculeu els quartils $Q_1$ i $Q_3$
433 \item Calculeu els percentils $p_{90}$ i $p_{60}$
437 \starthead{Interpreteu els paràmetres anteriors}
445 \startexercici[reference=exer:dades-discretes-supermercat, title={supermercat}] El nombre de persones per caixa en un supermercat és:
447 \startplacetable[location={force, none}, reference=taula:s17, title={Cua supermercat}]
448 \bTABLE[setups={table6:header, table6:frame, table6:style}]
449 \bTR \bTD 1, 2, 5, 4, 0, 0, 1, 2, 3, 2, 2, 2, 5, 6, 1,\eTD \eTR
450 \bTR \bTD 2, 2, 2, 0, 10, 1, 1, 3, 5, 3, 1, 4, 3, 5, 5 \eTD \eTR
454 \startitemize[a,packed]
455 \item Quanta gent hi ha al supermercat fent cua?
456 \item Quin és el nombre màxim de persones que esperen a una caixa?
457 \item Quin és el valor més usual de persones a la cua d'una caixa?
458 \item Quina és la mitjana?
459 \item Trobeu el percentil $p_{75}$
460 \item Interpreteu cadascun dels resultats anteriors
461 \item Amb tota aquesta informació, podríeu dir que hi ha poques o moltes persones fent cua a caixa?
468 \startsubject[title={Solucions}]
470 \startitemize[1][distance=0.5cm]