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By how much is the mean of 30, 56, 31, 55, 43 and 44 less than...

Mathematics
JAMB 2003

By how much is the mean of 30, 56, 31, 55, 43 and 44 less than the median?

  • A. 0.75
  • B. 0.50
  • C. 0.33
  • D. 0.17
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Correct Answer: Option C
Explanation

\(Mean = \frac{30+56+31+55+43+44}{6}\)

= \(\frac{259}{6}\) = 43.167

Median = 30,31,43,44,55,56  = \(\frac{43+44}{2}\)

=\( \frac{87}{2}\) = 43.5

Median-mean = 43.5 - 43.17 = 0.33

There is an explanation video available below.


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Explanation Video

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