Respuesta :
Answer:
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
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:
- First four days, mean of 16, thus total of [tex]4 \times 16 = 64[/tex]
- Fifth day, 25 customers.
Thus, 64 + 25 = 89 customers in 5 days, and the mean is:
[tex]M = \frac{89}{5} = 17.8[/tex]
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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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