Question

The mean of 20 observations is 36 . Find the resulting mean if each observation is
(i) divided by 0.5
(ii) multiplied by 3
(iii) increased by 4
(iv) decreased by 5

Answer 1

(I) resulting mean=36÷0.5 = 18
(ii) resulting mean= 36 × 3= 108
(iii) resulting mean = (20×36+4×20)/20=40
(iv) resulting mean=36-4=32

Answer 2

Answer:

top answer is wrong answer is 18

Step-by-step explanation:

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