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1. Probability of getting a number between 67 and 80 within a distribution that has a...

1. Probability of getting a number between 67 and 80 within a distribution that has a mean of 75 and a standard deviation of 2.35?

2. Probability of getting a number 77 within a distribution that has a mean of 75 and a standard deviation of 2.35?

Please explain! thank you!

Math   Statistics-And-Probability   
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