Save:
Favorite
Share:
Calculator Allowed: Yes

Question

Answer

Transcription of this question: 7.[Maximum mark: 81(a)(b)(c)Ahmed is typing Section A Of a mathematics examination paper. The numberOf mistakes that he makes, X , can be modelled by a Poisson distribution withmean 3.2. Find the probability that Ahmed makes exactly four mistakes.His colleague, Levi, is typing Section B Of this paper. The number Ofmistakes that he makes, Y , can be modelled by a Poisson distribution withmean m.If E(Y2) 5.5, find the value of,n.(ii) Find the probability that Levi makes exactly three mistakes.Given that X and Y are independent, find the probability that Ahmed makesexactly four mistakes and Levi makes exactly three mistakes.[l mark][5 marks][2 marks]

Leave a Reply