Mathematics 9709 · AS & A Level · Continuous random variables
Continuous random variables — practice question
The table shows the counts for a set of $250$ cars, arranged by colour and by country of manufacture.
(i)[1]
Find the probability that the chosen car is a red or silver car made in Korea.
(ii)[1]
Find the probability that the chosen car is not made in Japan.
(iii)[5]
$X$ is the event that the chosen car is white. $Y$ is the event that the chosen car was manufactured in Germany. Using the relevant probabilities, determine whether events $X$ and $Y$ are independent.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “So $\tfrac{64}{250}=0.256$” …