(1) Suppose

• n=59and
• p=0.20.

(For each answer, enter a number. Use 2 decimal places.)

(a) np= (b) nq=

(2) Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Enter a number. Round your answer to four decimal places.)

(a) The area to the left of z = 0.53 is ......

(3) Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Enter a number. Round your answer to four decimal places.)

= 8; = 2

(a) P(7 x 11) =