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2 years ago

15

A population of n ????20 scores has a mean of???????? 15. one score in the population is changed from x ???? 8 to x ???? 28. wha

t is the value for the new population mean?

1 answer:

Dmitry_Shevchenko [17]2 years ago

7 0

20 has been added to the total of scores, so the new mean for the 20 scores will be 20/20 = 1 higher than it was.

The new population mean is 15+1 = 16.

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Step-by-step explanation:

Given,

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Sales tax amount = 6% of discounted price

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Final cost of skateboard = Discounted price + Sales tax

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