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2 Statistics

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Question 180

The probability that Harry is late for school on any given day is 0.1, independently of every other day. Harry attends school on 30 days in a term.

a.

Find the probability that Harry is late exactly once.

[1]
b.

Find the probability that Harry is late more than four times.

[1]
c.

Find the probability that Harry is late fewer than three times.

[1]
Markscheme

2 Statistics Questions

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

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