A random variable X is normally distributed with mean 100 and standard deviation 7. What is the 67th percentile of the distribution of X? (PLEASE Use the empirical rule.)
(a) 103.08
(b) 121.56
(c) .44
(d) 13.08
(e) 51.00
A random variable X is normally distributed with mean 100 and standard deviation 7. What is...
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Assume the random variable X is normally distributed, with mean = 50 and standard deviation 0 - 9. Find the 12th percentile. The 12th percentile is 0 (Round to two decimal places as needed.) Find the Z-scores that separate the middle 67% of the distribution from the area in the tails of the standard normal distribution Click the loon to view a table of areas under the normal curve. The Z-scores are a (Use a comma to separate answers as...
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