Question: (a) What is the probability that a random variable with a standard normal distribution takes a value between 0.6 and 2.2? (b) What is the

(a) What is the probability that a random variable with a standard normal takes a value between 0.6 and 2.2?
(b) What is the probability that a random variable with a normal with μ = 4.1 and σ = 0.25 takes a value between 3.5 and 4.5?
(c) What is the probability that a random variable with a chi-square with 28 degrees of freedom takes a value between 16.928 and 18.939?
(d) What is the probability that a random variable with a t-distribution with 22 degrees of freedom takes a value between -1.717 and 2.819?

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