Let Z be the standard normal variable. Make a rough sketch of the appropriate region under the standard normal curve. P(−0.64 < Z < 0.88) Find the probability. (Round your answer to four decimal places.) P(−0.64 < Z < 0.88) =

Find the area of the shaded region under the standard normal distribution between the given z-scores. Round your answer to four decimal places. P(0.81 < z < 2.37) = Z 0.81 2 2.37

Find the z value such that 92% of the standard normal curve lies between −z and z. (Round your answer to two decimal places.)z =

Z is distributed as a standard normal variable. Use Excel to find Pr(Z > 0.59). Enter your answer as a decimal rounded to three decimal places, e.g. 0.268.

Let Z be the standard normal variable. Find z if P(-z < Z < z) = 0.8788. (Give your answer to two decimal places.)

Z is distributed as a standard normal variable. Use Excel to find Pr(-2.67 < Z < 1.24).

Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. The indicated Z score is

Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.)   P(z ≥ −1.60)= _______________Shade the corresponding area under the standard normal curve.

Z is distributed as a standard normal variable. Find Pr(Z < -0.46). Enter your answer as a decimal rounded to three decimal places, e.g. 0.268.