The variable X is normally distributed. The mean is u = 60.0 and the standard deviation...
X is a normally distributed variable with mean p = 30 and standard deviation o = 4. Find P(x < 40)
Assume the random variable x is normally distributed with mean u = 84 and standard deviation o =5 . Find the indicated probability P(70<x79) =
Assume the random variable X is normally distributed with mean u = 50 and standard deviation o=7. Find the 67th percentile. The 67th percentile is (Round to two decimal places as needed.)
Assume the random variable X is normally distributed, with mean u = 44 and standard deviation o =9. Find the 13th percentile. The 13th percentile is (Round to two decimal places as needed.)
Assume that the random variable X is normally distributed, with mean u = 44 and standard deviation with the area corresponding to the probability shaded. = 11. Compute the probability. Be sure to draw a normal curve P(X542) Which of the following shaded regions corresponds to PIX S42)? ОА. OB PIX S42)= (Round to four decimal places as needed.)
Assume that z-scores are normally distributed with a mean of O and a standard deviation of 1. If P(0 < z < a) = 0.4857, find a. a = (Round to two decimal places.)
Assume the random variable x is normally distributed with mean u 84 and standard deviation o 5. Find the indicated probability. P(x< 81) P(x <81)(Round to four decimal places as needed.)
Assume the random variable x is normally distributed with mean u = 85 and standard deviation a = 5. Find the indicated probability. P(73<x<77) P(73<x<77) - (Round to four decimal places as needed.)
Assume the random variable x is normally distributed with mean u = 80 and standard deviation ou 4. Find the indicated probability. P(67<x<73) P(67<x< 73)- (Round to four decimal places as needed.)
6) Assume X is a normally distributed random variable with mean μ= 53 and standard deviation σ-12. Find P(52<X< 62). A) 0.5137 B)0.4269 C) 0.3066 D) 0.2108 E) 0.3635