Suppose the force acting on a column that to support a building is a normally distributed random variable x with mean value 15.0 (kips) and standard deviation 1.25 (kips). calculate the following probabilities: (1) (2 points) p(x ≥ 17.5). (2) (2 points) p(14 ≤ x ≤ 18).

(1) 0.4207

(2) 0.7799

Step-by-step explanation:

Given,

Mean value,

Standard deviation,

(1) P(X ≥ 17.5) = 1 - P( X ≤ 17.5)

  ( By using z-score table )

= 0.4207

(2) P(14 ≤ X ≤ 18) = P(X ≤ 18) - P(X ≤ 14)

= 0.9918 - 0.2119

= 0.7799

sorry i need the points

step-by-step explanation:

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step-by-step explanation:

8/7 = (1 * 7 + 1) / 7 = 1 + 1/7 = 1 1/7