Problem (6):

In a sample of 30 students of the Academy, we obtained the following data which represents the weights of these students

65, 59, 47, 67, 56, 50, 74, 45, 83, 72, 71, 53, 82, 58, 64

79, 55, 88, 56, 69, 50, 68, 66, 62, 59, 52, 72, 63, 56, 91

answer the following questions without calculation.

1)What is the best central measure and the best dispersion measure? Give reason for your answer.

Are the three central measures have approximately equal values or not? If not what is the central measure which will have the greatest value and which will have the smallest value? Give reason for your answer