# Normal distribution & Probability

(i) Find the probability that his/her grade is greater than 90.

(ii) Find the probability that his/her grade is less than 50.

(iii) Find the probability that his/her grade is between 50 and 75.

(iv) Approximately, how many students have grades greater than 75.

Emmadavis

34

## Answer

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Erdos

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The answer is accepted.

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