Find the mean of first 9 prime numbers.

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Mean, Median and Mode

Question:

Find the mean of first 9 prime numbers.

Options:

18.33

11.11

Correct Answer:

11.11

Explanation:

First 9 prime numbers are = 2, 3, 5, 7, 11, 13, 17, 19, 23

Mean = \(\frac{ sum \; of \; observations }{ number \; of \; observations }\)

Mean = \(\frac{ 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 }{ 9 }\)

Mean = \(\frac{ 100 }{ 9 }\)

Mean = 11.11