A Maths quiz consists of 10 questions were given to a group of students. Each question...

A Maths quiz consists of 10 questions were given to a group of students. Each

question has 4 choices. Grade A is given to the students managed to get 70% marks

and above. According to the compiled data, 45% of students managed to get grade

(a) What is the probability that exactly 3 of a random sample of 5 the students were

grade A?

(b) What is the probability that not more than 7 of a random sample of those 15

students were grade A?

answers to every questions. Find the probability that the candidate will get

grade A in the quiz.

Solutions

Expert Solution

orchestra answered 1 year ago

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