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can you please help me solve this question? It has been observed the only 7% of Mr. Fraime's students had ever earned a 100 on

can you please help me solve this question?

It has been observed the only 7% of Mr. Fraime's students had ever earned a 100 on any of his tests. Suppose 250 of his students are polled. Find the probability that: a. At least 25 students made a 100 on his tests? b. Less than 14 students made a 100 on his test

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