- null - Probability Distribution of a Discrete Random Variable
Each of the total five questions in a multiple choice examination has four choices, only one of which is correct. A student is attempting to guess the answer. The random variable x is the number of questions answered correctly. What is the probability that the student will give atleast one correct answer?
The probability that a person who undergoes kidney operation will recover is 0.5. Find the probability that of the six patients who undergo similar operations,
(a) None will recover
(b) Half of them will recover.
The probability distribution of a discrete random variable X is: