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27-05-2020
Mathematics

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X is a normally distributed random variable with mean 62 and standard deviation 18.
What is the probability that X is between 44 and 80?

Write your answer as a decimal rounded to the nearest thousandth.

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27-05-2020

Answer:

0.683

Step-by-step explanation:

If you have a calculator with statistical functions, this work is especially straightforward.

On the calculator, type in

normcdf(44,80,62, 18)

The calculator returns the result (probability) 0.683

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