Find the mean of first 11 prime numbers.
Answer & explanation
Correct answer: option 2
First 11 prime numbers are = 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31
Mean = \(\frac{ sum \; of \; observations }{ number \; of \; observations }\)
Mean = \(\frac{ 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31}{ 11 }\)
Mean = \(\frac{ 160 }{ 11 }\)
Mean = 14.54