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2 Unit 2: Applied Mathematics A

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Question 65

In a game, X X\,X is the number of successful throws among a player's first five throws. Helen models X X\,X by B(5,0.3)B(5,0.3)B(5,0.3).

a.

State one assumption made by this model.

[1]
b.

Find P(X=2)P(X=2)P(X=2).

[2]
c.

Let Y Y\,Y be the number of the throw on which the first success occurs. Using Helen's model, find P(Y=5)P(Y=5)P(Y=5).

[2]
Markscheme

2 Unit 2: Applied Mathematics A Questions

  1. A Level
  2. /Maths
  3. /2 Unit 2: Applied Mathematics A

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