Using the following discrete probability distribution,

a. What are the values of the random variable?b. What is the mean of the distribution?c. What is the standard deviation of the distribution?d. What is the probability that the random variable is not equal to 5?e. What is the probability that the random variable is 15 or less?

Transcribed Image Text:

X 5 10 15 20 P(x) .1 324 .3 .2 .4