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03-01-2021
Mathematics

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A cafe is open for six days a week. There was a mean number of 86 customers for five days. On the next day there were 122 customers. What is the mean number of customers over the six days?

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jimrgrant1 jimrgrant1

03-01-2021

Answer:

92

Step-by-step explanation:

The mean is calculated as

mean = [tex]\frac{sum}{count}[/tex]

The sum of customers over the 5 days is

[tex]\frac{sum}{5}[/tex] = 86 ( multiply both sides by 5 )

sum = 430

Thus mean over the 6 days is

mean = [tex]\frac{430+122}{6}[/tex] = [tex]\frac{552}{6}[/tex] = 92

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