Tag Archive for: Random

Suppose x is a normally distributed random variable with mean Suppose x is a normally distributed…

Suppose x is a normally distributed random variable with meanSuppose x is a normally distributed random variable with mean 100 and standard deviation 8. Draw a rough graph of the distribution of x. Locate m and the interval μ ± 2σ on the graph. Find the following probabilities:
a. P(μ – 2σ ≤ x ≤ μ + 2σ) .9544
b. P(x ≥ μ + 2σ)
c. P(x ≤ 92)
d. P(92 ≤ x ≤ 116)
e. P(92 ≤ x ≤ 96)
f. P(76 ≤ x ≤ 124)
Suppose x is a normally distributed random variable with mean