1.

The mean of the four numbers is 22. The mean of the three smallest numbers is 19. If the data range is 15, what will be the mean of the largest three numbers?1. 242. 233. 254. 26

Answer» Correct Answer - Option 1 : 24

Given:

mean of four numbers = 22

mean of three smallest numbers = 19

data range 15

Formula used:

Mean = Sum of observations/Number of observations

Data range = Largest number – Smallest number

Calculation:

Sum of all numbers = 22 × 4 = 88

Sum of three smallest numbers = 19 × 3 = 57

Largest number = 88 – 57 = 31

Smallest number = 31 – 15 = 16

Sum of three largest number = 88 – 16 = 72 

Mean = 72/3

⇒ 24

∴ The mean of three largest number is 24



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