Find the mean of the given probability distribution. The probabilities that a batch of 4 computers will contain 0, 1, 2, 3, and 4 defective computers are 0.5470, 0.3562, 0.0870, 0.0094, and 0.0004, respectively. Round answer to the nearest hundredth.

Provide an appropriate response. Round to the nearest hundredth. A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.49, 0.39, 0.08, and 0.04, respectively. Find the standard deviation for the probability distribution. Round answer to the nearest hundredth.

Identify the given random variable as being discrete or continuous. The number of freshmen in the required course, English 101

In a game, you have a 1/36   probability of winning $94 and a 35/36 probability of losing  $8. What is your expected value?

Suppose you buy 1 ticket for $1 out of a lottery of 1,000 tickets where the prize for the one winning ticket is to be $500. What is your expected value?