Mathematics Statistics 1 9709: DISCRETE RANDOM VARIABLES Topical Past Paper Questions
Cambridge AS & A Level Mathematics Statistics 1 (9709) past-paper questions on DISCRETE RANDOM VARIABLES, free. This topic is frequently examined across 7 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A box contains 3 red balls and 5 white balls. One ball is chosen at random from the box and is not returned to the box. A second ball is now chosen at random from the box. (i) Find the probability that both balls chosen are red. [1] (ii) Show that the probability that the balls c…
The heights, in cm, of the 11 members of the Anvils athletics team and the 11 members of the Brecons swimming team are shown below. (i) Draw a back-to-back stem-and-leaf diagram to represent this information, with Anvils on the left-hand side of the diagram and Brecons on the rig…
Hebe attempts a crossword puzzle every day. The number of puzzles she completes in a week (7 days) is denoted by X. (i) State two conditions that are required for X to have a binomial distribution. [2] On average, Hebe completes 7 out of 10 of these puzzles. (ii) Use a binomial d…
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