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Back to 4.3 Binomial Distribution (Optional)

4.3 Exercise 9

Avg difficulty 2.5

Approximately 70 percent of statistics students do their homework in time for it to be collected and graded. Each student does homework independently. In a statistics class of 50 students, what is the probability that at least 40 will do their homework on time? Students are selected randomly.

e. If p + q = 1, then what is q?

OpenStax Statistics, 4.3 Binomial Distribution (Optional), exercise 9

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