Mathematics
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27.04.2021

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30.11.2022, solved by verified expert

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**Answer:**

**Step-by-step explanation:**

Sample size = 84 and standard deviation = 4

This means number of people can be 84 +- 4 or 80 to 88

Let the number of meal be X.

probability of having more people than meals is 5%

Z score = X-mean/ sigma = (X - 84)/4 = 5% of X = X/5

5X -84 = 4X

**X = 84**

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