Calculate the mean and standard deviation for the following data
0 - 10 5
10-20 8
20-30 15
30-40 16
40-50 6
Answers
Answered by
0
Answer:
Marks Mid-values(X) f dxi=X−25/10 fdx
i
f dx
i
2
0−10 5 10 −2 −20 40
10−20 15 8 −1 −8 8
20−30 25 15 0 0 0
30−40 35 8 1 8 8
40−50 45 4 2 8 16
Total
45
−12 72
45
72
−
45×45
144
×10
=12.36
Answered by
1
Answer:
This is your answer please mark me as a brainliest
Attachments:
Similar questions