MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The data represents the murder rate per 100,000 individuals in a sample of selected cities in the United States. Find the variance and standard deviation. Round your answer to at least one decimal place. 

class limit      Frequency 

5-11                8

12-18              6

19-25              10

26-32              1

33-39               1

40-46               3

Expert Solution
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Step 1
class f x f*x f*x2
5-11 8 8 64 512
12-18 6 15 90 1350
19-25 10 22 220 4850
26-32 1 29 29 841
33-39 1 36 36 1296
40-46 3 43 129 5547
total n=29   568 14386
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