Question: What is the probability that a normally distributed random variable with a mean of 800 and a standard deviation of 65 has a value between

What is the probability that a normally distributed random variable with a mean of 800 and a standard deviation of 65 has a value between 750 and 850?

I calculate z for 750/850 and the answer - 0.769/ +0769

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What is the probability that a normally distributed random variable with a mean of 800 and a standard deviation of 65 has a value between 750 and 850?

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