Compute the lower quartile of family income allocated to grocery purchases (round off to four decimal).

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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An economist conducted a study to identify the percentage of family income allocated to the purchase of groceries. She surveyed a random sample of
50 families and compiled the following frequency table:
Percent of
Number of
F
fm
fm2
Income
families
10-<20%
6
15
90
1350
20-<30%
14
20
25
350
8750
30-<40%
16
36
35
560
19600
40-<50%
10
46
45
450
20250
50-<60%
4
50
55
220
12100
Compute the lower quartile of family income allocated to grocery purchases (round off to four decimal).
Transcribed Image Text:An economist conducted a study to identify the percentage of family income allocated to the purchase of groceries. She surveyed a random sample of 50 families and compiled the following frequency table: Percent of Number of F fm fm2 Income families 10-<20% 6 15 90 1350 20-<30% 14 20 25 350 8750 30-<40% 16 36 35 560 19600 40-<50% 10 46 45 450 20250 50-<60% 4 50 55 220 12100 Compute the lower quartile of family income allocated to grocery purchases (round off to four decimal).
Compute the lower quartile of family income allocated to grocery purchases (round off to four decimal).
A. 24.8429
B. 24.6429
O C. 10.6429
D. 14.6429
Transcribed Image Text:Compute the lower quartile of family income allocated to grocery purchases (round off to four decimal). A. 24.8429 B. 24.6429 O C. 10.6429 D. 14.6429
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