Assume x is normally distributed with mean = 15 and standard ...

[mwit1967]

Assume x is normally distributed with mean  = 15 and standard deviation  = 3 . Use the approximate areas beneath the normal curve, as discussed in this section, to find P(x 12).

Question 2

The average cost of renting a compact size car in a major metropolitan area of the U.S. is 51.74 with a standard deviation of 7.48 . Assume a normal distribution. If a sample of 20 cities is taken, what is the probability that the sample mean will fall between 47.74 and 55.74?

[Animal_Goddess]

Answer to Question 1

0.8415

Answer to Question 2

0.9832

[mwit1967]

Thank you

[Animal_Goddess]

No problemo