Compute the mean and standard deviation of the random variable with the given discrete probability distribution. X P (x) -10 0.13 -2 0.18 1 0.22 4 0.47 Send data to Excel Part 1 of 2 V (a) Find the mean. Round the answer to three decimal places, if necessary. The mean is .44 Alternate Answer: 0.44 Part: 1 / 2 Part 2 of 2 (b) Find the standard deviation. Round the answer to at least three decimal places. The standard deviation is.Put some air in your tires: Let Y represent the number of tires with low air pressure on a randomly chosen car. The probability distribution of A is as follows. X 0 1 3 4 P(x) 0.2 0.1 0.3 0.2 0.2 Send data to Excel Part 1 of 6 V (a) Find P (2). P (2) = 3]. Alternate Answer: 0.3 Part 2 of 6 V (b) Find (Greater than 1). P (Greater than 1) = |.7 Alternate Answer: 0.7 Part: 2 / 6 Part 3 of 6 (c) Find the probability that all four tires have low air pressure. The probability that all four tires have low air pressure is.Texting: Five teenagers are selected at random. Let_Y be the number of them who have sent text messages on their cell phones within the past 30 days. According to a recent study, the probability distribution of X is as follows: 0 1 2 3 4 5 P(x) 0.017 0.098 0.258 0.341 0.226 0.060 Send data to Excel Part 1 of 6 V (a) Find P (5) P (5) = 06 Alternate Answer: 0.060 Part 2 of 6 (b) Find P (More than 1). P ( More than 1) = .885 Alternate Answer: 0.885 Part: 2 / 6 Part 3 of 6 (c) Find the probability that three or more of the teenagers sent text messages. The probability that three or more of the teenagers sent text messages is