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2.4 N: Statistical distributions

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Question 60

The random variable X X\,X has the distribution X∼B(15,0.35)X \sim B(15, 0.35)X∼B(15,0.35).

a.

Find P(X=5)P(X = 5)P(X=5).

[1]
b.

Find P(X<4)P(X < 4)P(X<4).

[1]
c.

Find P(X≤10)P(X \le 10)P(X≤10).

[1]
Markscheme

2.4 N: Statistical distributions Questions

  1. A Level
  2. /Maths
  3. /2.4 N: Statistical distributions

390 exam-style questions on AQA A Level Maths 2.4 N: Statistical distributions, covering 2.4.1 Discrete distributions and the binomial, 2.4.2 The Normal distribution (A-level only), and 2.4.3 Selecting an appropriate distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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