TL20222 TL20222

09-05-2024
Mathematics

Answered

HELP QUICK PLEASE 45 POINTS
On a recent survey from Starbucks, 3850 people were asked their age. The mean age was found to be 30 years with a standard deviation of 30 months.

Assume that the data is normally distributed and use the 68−95−99.7 Rule to answer the following questions.

a) Of those surveyed, about how many people are at least 27.5 years old?

b) Of those surveyed, about how many people are less than 27.5 years old?

Answer :

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