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Conditional Probability

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Question 114

A fitness center has 100 members. The length of time they have been members and their preferred exercise type are summarized in the table below.

Membership duration, xxx yearsYogaCardio
x<2x < 2x<2812
2≤x<52 \le x < 52≤x<51525
5≤x5 \le x5≤x1228

One of the 100 members is selected at random.

a.

Find the probability that the member prefers Yoga.

[1]
b.

Given that the member has been a member for less than 2 years, find the probability that this member prefers Cardio.

[2]
c.

Given that the member has been a member for less than 5 years, find the probability that this member prefers Cardio.

[2]
d.

State, with a reason, whether or not the event 'preferring Cardio' is independent of the event 'being a member for less than 2 years'.

[2]

Conditional Probability Questions

  1. A Level
  2. /Maths
  3. /Conditional Probability

Practise Edexcel A Level Maths Conditional Probability with exam-style questions for A Level Maths. 152 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank