During a 5 5 -day period, a florist served a different number of customers at a flower shop each day. The mean number of daily customers served during this period was 17 17 . In the following month, during another 5 5 -day period, the florist served 16 16 customers per day for four of the days, but served 25 25 customers on the fifth day. What is the difference between the mean number of customers the florist served during each of the two five-day periods?

The difference between the mean number of customers the florist served during each of the two five-day periods is of 0.8.

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The mean of a data-set is the sum of all values in the data-set divided by the number of values.

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First period:

5 days, mean of 17.

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Second period:

Thus, 64 + 25 = 89 customers in 5 days, and the mean is:

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Difference:

17.8 - 17 = 0.8

The difference between the mean number of customers the florist served during each of the two five-day periods is of 0.8.

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0.8

Step-by-step explanation:

Mean for the first 5 day period = 17

Mean for the second 5 day period = 17.8

Difference 17.8 - 17 = 0.8

step-by-step explanation:

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