the mean of 20 number is 18 if 2 is added to each number what is the new mean
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0
Step-by-step explanation:
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Answered by
1
Answer:
20
Step-by-step explanation:
Given , Mean = 18
mean = Sum of obs / number of observations
18 = x / 20
18 × 20= x
360 = x
sum of observations = 360
if 2 added to each observations then mean =:
360+40 = 20
400 = 20
new mean = 400 / 20
= 20
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