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2 Statistics

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Question 285

The random variable X X\,X has the distribution X∼B(12,p)X \sim B(12, p)X∼B(12,p), and P(X=0)=0.0687P(X = 0) = 0.0687P(X=0)=0.0687 to 3 significant figures.

a.

Show that p=0.2p = 0.2p=0.2.

[3]
b.

Hence find P(X≥3)P(X \ge 3)P(X≥3).

[2]
c.

Find P(X=1)P(X=1)P(X=1).

[1]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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