Question: X is a random variable having a normal distribution with mean 3.0 and variance 1.69. Find the probability that X would take the value between

X is a random variable having a normal distribution with mean 3.0 and variance 1.69. Find

the probability that X would take the value between 1.20 and 3.49. Find the value of c, if

Prob( X > c) = 0.75.

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