City Guilds Model Questions Vol1 2021 Information Technology Question 42
Practice objective / multiple choice question 42 from the 2021 City Guilds Model Questions Vol1 Information Technology examination.
A market research survey of 500 customers gave the following information: - 260 customers bought product A, - 190 customers bought product B, - 120 customers bought both A and B. (a) What is the probability that a randomly selected customer who bought at least one of the two products bought both? (b) If the total number of customers surveyed is increased by 20 % while the same proportions are maintained, how many customers are expected to have bought exactly one of the two products?
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About This Question
This is City Guilds Model Questions Vol1 2021 Information Technology Question 42. It is one of the objective questions from the 2021 City Guilds Model Questions Vol1 Information Technology examination.
Difficulty level: Hard .
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