Question: Assume 20 % of all Students will plan to study abroad in next year and we randomly select 50 students. a. Find the probability that

Assume 20 % of all Students will plan to study abroad in next year and we randomly select 50 students.

a. Find the probability that in the sample we select, more than 10 of them plan to study abroad in next year.

b. Find the probability that in the sample we select, exact 10 of them plan to study abroad in next year.

c. Find the probability that in the sample we select, less than half of them plan to study abroad in next year.

d. Find the average number of student in this sample will plan to study abroad in next year and also find its standard deviation.

e. In this sample, is it usual to have less than 15 of them to study abroad in next year in nest year? State your reason.

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