I just need assistance with the answers to a few questions please.

1.) Part 2?

Following is the probability distribution of a random variable that represents the number of extracurricular activities a college freshman participates in. X 0 1 2 3 4 P(x) 0.07 0.13 0.45 0.22 0.13 Send data to Excel Part 1 of 3 V (a) Find the probability that a student participates in exactly one activity. The probability that a student participates in exactly one activity is | 0.13 Part: 1 / 3 Part 2 of 3 (b) Find the probability that a student participates in less than three activities. The probability that a student participates in less than three activities is X 5A binomial experiment has the given number of trials in and me given success probability p. n=4,p=0.8 (a) Determine the probability 15(2). Round the answer to at least three decimal places. we- (b} Find the mean. Round the answer to two decimal places. The mean is C]. A binomial experiment has the given number of trials :1 and the given success probability p. n=13,p={}.2 (a) Determine the probability P{2 or fewer). Round the answer to at least four decimal places. P (2 or fewer) = (b) Find the mean. Round the answer to two decimal places. The mean is [:1. Take a guess: A student takes a multipleLchoice test that has 10 questions. Each question has four choices. The student guesses randomly at each answer. LetX be the number of questions answered correctly. Round the answers to at least four decimal places. (a)P(4) =- (b}P{More than 3) = E]