In the data set, what is the variance? 6 8 1 9 4
Answers
Answered by
14
variance = £x2/n -[£x/n]2
£ denotes summation of
x=6 8 1 9 4
x2=36 64 1 81 16
£x= 6+8+1+9+4= 28
£x2=36+64+1+81+16=198
Variance = (198/5 - [28/5]2)
= (198/5 - [784/25])
= (990/25 -784/25)
=990-784/25
=186/25
variance=7.44
£ denotes summation of
x=6 8 1 9 4
x2=36 64 1 81 16
£x= 6+8+1+9+4= 28
£x2=36+64+1+81+16=198
Variance = (198/5 - [28/5]2)
= (198/5 - [784/25])
= (990/25 -784/25)
=990-784/25
=186/25
variance=7.44
rishilaugh:
thanks for the answer
wrong answer.
Answered by
11
Please have a look at the attachment regarding solution of this question.
Attachments:
Similar questions