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Find, correct to two decimal places, the mean of 9, 13, 16, 17, 19, 23,...

Mathematics
WAEC 2004

Find, correct to two decimal places, the mean of 9, 13, 16, 17, 19, 23, 24.

  • A. 23.00
  • B. 17.29
  • C. 16.50
  • D. 16.33
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Correct Answer: Option B
Explanation

Mean \(= \frac{sum\hspace{1mm}of\hspace{1mm}all\hspace{1mm}the\hspace{1mm}numbers}{Total\hspace{1mm}Number}\\
\frac{9+13+16+17+19+23+24}{7}\\
\frac{121}{7}=17.2857=17.29\)

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