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Question
Find the mean of the following:
Odd numbers lying between 20 and 30
Sum
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Solution
Given: Odd numbers lying between 20 and 30 = 21, 23, 25, 27, 29
Step-wise calculation:
Sum = 21 + 23 + 25 + 27 + 29
= 125
Number of observations = 5
Mean = 125 ÷ 5
= 25
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Chapter 15: Statistics - Exercise 15C [Page 303]
