Question: 7.The probability that Prasha will score above a 90 on a mathematics test is4/5 . What is the probability that she will score above a

7.The probability that Prasha will score above a 90 on a mathematics test is4/5

. What is the probability that she will score above a 90 on 3 of the 4 tests this quarter?(4 marks)

8.A company manufacturing laptops believes that 5% of their computers are faulty. They take a sample of 30 computers. Showing your calculations, find the probability that;(2 marks each)

a)Two of the laptops are faulty.

b)More than two of the laptops are faulty.

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