At a certain university 12% of students are left hand users. Suppose that a random sample...

At a certain university 12% of students are left hand users. Suppose that a random sample of 8 students were admitted in 2015 is selected.

(a) What is the probability that none of them will be a left hand user?

(b) What is the probability that 5 of them are left hand users?

(d) What is the probability that at most 7 of them are left hand user?

(e) What is the probability that between 4 and 6 (inclusive) of them are left hand user?

(f) What is the expected value and standard deviation of number of users with left hand?

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orchestra answered 1 year ago

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