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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 13PT

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Question

b) These are the ages of the students in the English class;
Edades
15
16
17
18
19
1
3
7
4
5
n = 20
Fi
1
4
11
15
20
1
20
3
20
7
20
4
20
5
20
hi
= 0.05
= 0.15
= 0.35
= 0.2
= 0.25
1
0.05
0.20
0.55
0.75
1
5%
15%
35%
20%
25%
1) Calculate each of the measures of central tendency, measure of
dispersion (population), and
2) the measure of position (calculate quartiles 1 and 3,
percentiles 20,30 and 55, Deciles 3, 6 and 7)
3) Make their respective graphs (frequency polygon)
0.05 x 100

a) A survey was carried out in the Cristo Rey sector to find out the socioeconomic level
of families in a certain month, for which a probabilistic sample of 40 families was
selected. The variable of interest was categorized as follows: low (B), medium (M) and
High (A)
M
B
A
M
B
B
B
M
B
B
M
M
B
B
A
M
M
M
M
A
B
M
B
B
M
B
M
BA
M
1) The realization of the frequency table
2) Make their respective graphs (sector or pie diagram)
A
B
A
ΣΣ
M
ΣΣΟΣ
M
B
M

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