Overview
I don’t know how to handle this Mathematics question and need guidance.
Let the random variable X follow a normal distribution with μ=40 and σ2=49.
use the standard normal distribution table to solve
| a. | Find the probability that X is greater than 50. |
b. | Find the probability that X is greater than 20 and less than 53. |
c. | Find the probability that X is less than 45. |
d. | The probability is 0.1 that X is greater than what number? |
e. | The probability is 0.03 that X is in the symmetric interval about the mean between which two numbers? |