Mathematics Probability & Statistics 1 9709: GEOMETRIC DISTRIBUTION Topical Past Paper Questions

Two fair 4-sided spinners each have sides labelled 1, 2, 3, 4. The spinners are spun at the same time, and the number on the side on which each spinner lands is noted. The random variable X is the difference between the two numbers. For example, the difference between 1 and 3 and…

A fair 6-sided dice with faces labelled 1, 2, 3, 4, 5, 6 is thrown repeatedly. The random variable X denotes the number of throws required to obtain a 6. (a) Find P(X=7). (b) Find P $ (3 \leqslant X \leqslant 5) $.

Sam is a member of a soccer club. She is practising scoring goals. The probability that Sam will score a goal on any attempt is 0.7, independently of all other attempts. **(a)** Sam makes 10 attempts at scoring goals. Find the probability that Sam will score goals on fewer than 8…