**Question: ****How many more letter arrangements are possible for letters (A, B, B, X) than the ****letters (A, B, B)?**

## Probability: Other Probability Problems – #29554

**Question: ** Z is a standard normal random variable. Find the following probabilities.

a. P(-1.96 <= Z <+ -1.4)

b. P(Z <= +1.96)

c. (Z >= +.24)

**Question: ** Z is a standard normal random variable. Find the following probabilities.

a. P(-1.96 <= Z <+ -1.4)

b. P(Z <= +1.96)

c. (Z >= +.24)