Concept explainers
Find the correct option.
Answer to Problem 26CCSR
Explanation of Solution
Given information:
How does the mean of the data set below change if each value increased by
Option:-
Calculation:
Mean is defined as the sum of observations to the number of observations of any given data.
Consider the given series:
First write in increasing order
The number of observation is
Also, the sum of observation is
So, applying the value:
Now, add each observation by
That is,
Sum of observation,
Hence, the mean is given below:
Now, subtract the new mean from the old mean obtained:
Hence, clearly the mean gets increased by
Hence, the option
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