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24-10-2021
Mathematics

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This is a statistics question.
Find the sample mean of the frequency distribution.

This is a statistics question Find the sample mean of the frequency distribution class=

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discipulus discipulus

24-10-2021

Answer:

[tex] \frac{5 + 8}{2} = 6.5 \\ \frac{9 + 12}{2} = 9.5 \\ \frac{13 + 16}{2} = 14.5 \\ mean = \frac{ \sum \: xf}{n} \\ = \frac{(3 \times 6.5) + (5 \times 9.5) + (1 \times 14.5)}{(3 + 5 + 1)} [/tex]

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