Mathematics, 05.12.2021 07:30 dyamondgeorge1oy4nex
X is a normally distributed random variable with mean 34 and standard deviation 9.
What is the probability that X is between 5 and 63?
Write your answer as a decimal rounded to the nearest thousandth.
Answers: 1
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2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
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X is a normally distributed random variable with mean 34 and standard deviation 9.
What is the pro...
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