Question: For the following cumulative distribution function for a discrete random variable X, a. Find the probability mass function. Show why it is a valid probability

For the following cumulative function for a discrete random variable X,

a. Find the probability mass function. Show why it is a valid probability mass function.
b. What is the probability that X will be more than 2?
c. Given that X is at most 2, what is the probability that it is positive?
d. Given that X is positive, what is the probability that it will be at least

0.03 0.20 0.76 if 33a

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