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Statistical Distributions

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Question 4
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A fair 4 sided spinner has sides numbered 1, 2, 3 and 4.

a.

Write down the name of the distribution that can be used to model the number the spinner lands on from each spin.

[1]
b.

The spinner is spun 40 times. The random variable X X\,X represents the number of times the spinner lands on 3. Find the probability that the spinner lands on 3 exactly 10 times.

[2]
c.

Find P(6≤X<10)P(6 \leq X < 10)P(6≤X<10)

[3]

Statistical Distributions Questions

  1. AS Level
  2. /Maths
  3. /Statistical Distributions