Suppose the force acting on a column that helps to support a building is a normally distributed random variable X with mean value 15.0 kips and standard deviation 1.25 kips. Compute the following probabilities by standardizing and then using Table A.3.
a. P(X ≤ 15)
b. P(X ≤ 17.5)
c. P(X ≥ 10)
d. P(14 ≤ X ≤ 18)
e. P(|X – 15 | ≤ 3 )
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