(1)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.)

= 4; = 6

(a) P(1 x 10) = ________

(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.)

(b) The area to the left of z = 0.52 is ______