Below are 36 sorted ages of an acting award winner. find upper p70 using the method presented in the textbook.
16 24 25 26 27 29 36 39 39 39 40 44 45 47 47 48 50 51 51 53 53 54 57 58
58 60 65 66 67 69 69 71 72 74 74 74

The upper 70th percentile is the number below which 70% of the data lie.

The 70th percentile position is given by:



Thus, the 70th percentile position is approximately the 25th data item (after the data has been arranged in acsending order).

Given the following data:
16 24 25 26 27 29 36 39 39 39 40 44 45 47 47 48 50 51 51 53 53 54 57 58
58 60 65 66 67 69 69 71 72 74 74 74

The 25th data in the data set is 58.

Therefore, the upper P70 is 58.

The answer is that the rate of change is $50 per 1 monthhope this ; )