12. You are given the following data pertaining to kilowatt hours of electricity consumed by 100 persons in J&K. Consumption (in K Watt hours) 0-10 10-20 20-30 30-40 40-50 No. of users 6. 25 36 20 13 Calculate (i) arithmetic mean, (ii) standard deviation and (iii) coefficient of skewness.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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12. You are given the following data pertaining to kilowatt hours of
electricity consumed by 100 persons in J&K.
Consumption
(in K Watt hours)
0-10
10-20
20-30
30-40
40-50
No. of users
6.
25
36
20
13
Calculate (i) arithmetic mean, (ii) standard deviation and (iii) coefficient of
skewness.
Transcribed Image Text:12. You are given the following data pertaining to kilowatt hours of electricity consumed by 100 persons in J&K. Consumption (in K Watt hours) 0-10 10-20 20-30 30-40 40-50 No. of users 6. 25 36 20 13 Calculate (i) arithmetic mean, (ii) standard deviation and (iii) coefficient of skewness.
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