The age (years) of some members in a singing group are: 12, 47, 49, 15,

MATHEMATICS
WAEC 2022

The age (years) of some members in a singing group are: 12, 47, 49, 15, 43, 41, 13, 39, 43, 41 and 36.

Find the mean

  • A. 33.35
  • B. 35.54
  • C. 34.45
  • D. 36.44

Correct Answer: C. 34.45

Explanation

\(\frac{12 + 47 + 49 + 15 + 43 + 41 + 13 + 39 + 43 + 41 + 36}{11}\)

= \(\frac{379}{11}\)

= 34.45



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