Question

the mean of 10 8 15 p 19 9 2 7 is p. Then p




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Answer 1

Answer:

mean :

$\frac{10 + 8 + 15 + p + 19 + 9 + 2 + 7}{8} = p$

$\frac{70+p}{8} = p$

70 + p = 8p

70 = 8p-p

70 = 7p

p = 10

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