wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The sum of the squares deviations for 10 observations taken from their mean 50 is 250. The coefficient of variation is

A
10%
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
40%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
50%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
none of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 10%
Sum of the squares of 10 observations = 250
Thus, variance =25010 = 25
standard deviation =variance=5
The coefficient of variation is defined as the ratio of the standard deviation to the mean of the sample.
Thus, coefficient of variation = 550=110, i.e. 10%

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Mode
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon