Suppose X is normally distributed with mean μ and standard deviation σ. Then the first quartile for X is given by:
A.) 0.25(x-u)/o
B.) u-0.675o
C.) 0.5u
D.) u-0.25o
Suppose X is normally distributed with mean μ and standard deviation σ. Then the first quartile...
X is a normally distributed variable with mean μ = 30 and standard deviation σ = 4. Find P(x < 40)?
X is normally distributed with mean μ= 5.2 and standard deviation σ= 1.4. A. Find the z-score corresponding to X= 7.3. B. Compute P(X≤7.3) C. Compute P(X>7.3)
1. X is a normally distributed variable with mean μ = 30 and standard deviation σ = 4. Draw a graph and Find: a) P(x < 40) b) P(x > 21) c) P(30 < x < 35)
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
Assume the random variable X is normally distributed with mean μ= 50 and standard deviation σ 7. Find the 87th percentile. The 87th percentlie is Round to two decimal places as needed.) The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips (a) What is the probability that a randomly selected bag contains between 1100 and 1400 chocolate chips, inclusive? (b) What...
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Find the 96th percentile. The 96th percentile is _______
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=77. Find the 89th percentile.
Assume the random variable X is normally distributed, with mean μ=46 and standard deviation σ=66. Find the 10th percentile
Assume the random variable x is normally distributed with mean μ=50 and standard deviation σ=7. Find the indicated probability. P(x>34)
Assume the random variable x is normally distributed with mean μ=50 and standard deviation σ=7. Find the indicated probability. P (x>38)