Mathematics 4024 · O Level · Probability of combined events

Probability of combined events — practice question

Four cards are labelled $1,2,3$ and $4$. One card is picked at random. Then, from the three cards left, a second card is selected at random. The total of the numbers on the two selected cards is found.
(a)[1]

Complete the table so that the possible outcomes are shown.

(b)[1]

What is the probability that the sum is below $2$?

(c)[1]

What is the probability that the sum exceeds $5$?

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