20 people play a game at a school fete. The probability that exactly n people win a...

Question:

20 people play a game at a school fete. The probability that exactly n people win a prize is modelled as

where p is the probability of any one person winning.

Calculate the probability of:

a. 5 people winning when p = 1/2

b. Nobody winning when p = 0.7

c. 13 people winning when p = 0.6

Give your answers to 3 significant figures.

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Related Book For answer-question

Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS

ISBN: 9781292183398

1st Edition

Authors: Greg Attwood

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Question Posted: Jul 15, 2023 05:29 AM

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20 people play a game at a school fete. The probability that exactly n people win a...

Question:

(²0)p²(1 − p)20-n,

Step by Step Answer:

a To calculate the probability of 5 people winning when p 12 we substitute the values into the given ...View the full answer

Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS

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