Question

From the following data, find:  

Upper quartile

25, 10, 40, 88, 45, 60, 77, 36, 18, 95, 56, 65, 7, 0, 38 and 83 

Answer 1

Arrange in ascending order: 

0, 7, 10, 18, 25, 36, 38, 40, 45, 56, 60, 65, 77, 83, 88, 95 

Upper quartile

`q_3 = ((3(n))/4)^("th")` term  

`q_3 = (3 xx 16)^("th")/4` term

= 12^th term

= 65