Answer:
The average delivery time for a pizza delivery service is 27 minutes with a standard deviation of 3 minutes. If a customer were to receive the delivery within one standard deviation from the mean, he would get this pizza in 24 to 30 minutes.
Step-by-step explanation:
Within 1 standard deviation of the mean can be any time in the interval between one standard deviation below the mean and one standard deviation above the mean.
In this problem, we have that:
Mean = 27
Standard deviation = 3
One standard deviation below the mean:
27 - 3 = 24
One standard deviation above the mean:
27 + 3 = 30
Answer:
The average delivery time for a pizza delivery service is 27 minutes with a standard deviation of 3 minutes. If a customer were to receive the delivery within one standard deviation from the mean, he would get this pizza in 24 to 30 minutes.
