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

mean=6;standard deviation=2

P(5x8) =________

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

mean=26;standard deviation =3.8

P(x30) =__________

Findzsuch that87.9%of the standard normal curve lies to the left ofz. (Enter a number. Round your answer to two decimal places.) Attachment for graphs as needed.

z=

Sketch the area described. (Select the correct graph.)

Sketch the area described. (Select the correct graph.) This is a graph of a standard normal distribution with z to the right of zero. The area under the curve to the left of z is shaded. \f