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Question

The table below shows the number of guests visiting a hotel in three days of a week.
The mean number of guests visiting the hotel in three days is .

A
21
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B
18
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C
20
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D
23
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Solution

The correct option is A 21
Mean is an average of the given numbers.
i.e, Mean =Sum of all the observationsTotal number of observations



Sum of all observations = 17 + 21 + 25
= 63
Total number of observations = 3
Mean =633=21

The mean number of guests visiting the hotel in 3 days are 21.

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