Find the standard deviation of students

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It is known from the past experience that 80% of the students in a school do their homework. Find the probability that during a random check of ten students: i. all have done their homework ii. at most two have not done their homework iii. at least one has not done the homework iv. Find the expected number of students who do their homework. v. Find the standard deviation of students who do their homework

Reference no: EM132917959

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