Mathematics 9709/53 — May/June 2020
Cambridge AS Level · Probability & Statistics 1 · worked solutions for every part, with the mark scheme
Topics Probability · Discrete Random Variables · The Normal Distribution · Representation of Data · Permutations and Combinations
Juan goes to college each day by any one of car or bus or walking. The probability that he goes by car is 0.2, the probability that he goes by bus is 0.45 and the probability that he walks is 0.35. When Juan goes by car, the probability that he arrives early is 0.6. When he goes by bus, the probability that he arrives early is 0.1. When he walks he always arrives early.
Draw a fully labelled tree diagram to represent this information.
Find the probability that Juan goes to college by car given that he arrives early.
The rest of this paper
6 more questions- Q2Probability · Discrete Random Variables4M
- Q3The Normal Distribution5M
- Q4Discrete Random Variables · Probability6M
- Q5Discrete Random Variables · The Normal Distribution9M
- Q6Representation of Data10M
- Q7Permutations and Combinations · Probability10M