If the meanof 6,4,7,p and 10 is 8. Find the value of p.

Mean = sum of the numbers divided by amount of numbers = (6 + 4 + 7 + 10 + p) divided by 6

= (27 + p) divided by 6 = 8 (which is given)

Thus 27 + p = 8 * 6 = 48. So p = 48 - 27 = 21

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