A spinner has five numbered sectors 1, 2, 3, 4 and 5
MATHEMATICS · Multi-part · AP · AP Statistics · Probability Random Variables Distributions · Probability Random Variables Distributions
Problem
A spinner has five numbered sectors 1, 2, 3, 4 and 5. Because of unequal areas, the probabilities of landing on 1, 2, 3 and 4 are observed to be 0.18,0.27,0.22 and 0.19 respectively. Answer the following questions:
(i) Find the probability of the pointer landing on number 5 so that the probabilities of all five outcomes sum to 1.
(ii) List the complete set of five probabilities.
(iii) Verify that each probability found lies between 0 and 1 inclusive.
(iv) Express every probability in part (ii) as a percentage correct to the nearest whole per cent.