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Question

Pastries made by Marie in the previous week from Monday to Sunday are
5,6,3,4,7,8,9 respectively.

On the basis of this data, calculate the experimental probability that Marie prepares less than 7 pastries for the previous week.

A
37
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B
47
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C
57
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D
67
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Solution

The correct option is B 47

The number of pastries made by Marie in the previous week from Monday to Sunday is given as:
5,6,3,4,7,8,9

Numbers in the above data less than 7 are: 5,6,3,4
Days Number of Pastries
Monday 5
Tuesday 6
Wednesday 3
Thursday 4
Friday 7
Saturday 8
Sunday 9


There would be 4 days out of 7 days in which the number of pastries made by Marie is less than 7.

Let P(<7) denotes the experimental probability of the number of pastries less than 7.

P(<7)=47

The experimental probabilty that Marie prepares less than 7 pastries in the previous week is 47.

Therefore, option (b.) is the correct answer.

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