CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

fixi = 10 x + 40, fi = 12. If the mean of the distribution is 60, what is the value of  x?



Your Answer
A

72

Correct Answer
B

68

Your Answer
C

70

Your Answer
D

74


Solution

The correct option is B

68


We have given,
fixi = 10 x + 40
and fi = 12

We know that,
          Mean = fixifi
              60 = 10 x + 40 12
  12 × 60 = 10 x + 40
720 – 40 = 10 x
        10 x = 680
             x = 68

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image