a)

Let X is a random variable. Suppose that My = -7 and ox = 2. What is the mean and the standard deviation of Y, given as below, Y = -1.5X +4Which of the following are one of the assumptions for a binomial distribution? than one answers. O There is a fixed number of trials O The trials are independent The probability of success increases with the number of failures There are an even number of successes and failures Points should be closely aligned to the blue line in a QQ plotJack likes to play computer solitaire and his winning probability is 63%. What is the R command to calculate the probability that he wins more than 4 games out of his next 19 games? O pnorm(4, 19, 0.63) O phinom(4, 19, 0.63) O 1 - phinom(4, 19, 0.63) O dbinom(4, 19, 63)