Question

SELF-REVIEW 7-4

The temperature of coffee sold at the Coffee Bean Cafe follows the normal probability distribution, with a mean of 150

degrees. The standard deviation of this distribution is 5 degrees.

(a) What is the probability that the coffee temperature is between 150 degrees and 154 degrees?

(b) What is the probability that the coffee temperature is more than 164 degrees?

SELF-REVIEW 7-5

Page 222

EY-Y

-2

Refer to Self-Review 7-4. The temperature of coffee sold at the Coffee Bean Cafe follows the normal probability

distribution with a mean of 150 degrees. The standard deviation of this distribution is 5 degrees.

(a) What is the probability the coffee temperature is between 146 and 156 degrees?

(b) What is the probability the coffee temperature is more than 156 but less than 162 degrees?

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