3- 4 This is Statistics and probability subject.. please do provide precise solution please. no need for explain explain.... in return I WILL RATE HELPFUL RATING DIRECTLY..

3. 50 students live in a dormitory. The parking lot has the capacity for 30 cars. If each student has a car with probability [independently from other students), what is the probability that there won't be enough parking spaces for all the cars? 4. Let X be a discrete random variable with the following PMF: FAX) a. Find RX, the range of the random variable X. b. Find P[Xs 0.5]. c. Find P{0.3 -= X c 0.8). d. Find P{X = D.2|X 5 0.6}