A poll shows that 80% of voters in a city favor of building a new railway. If 22 selected at random, what is the probability exactly 7 of them will vote in favor of new railway? A. 20 B. 0 C. 80

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Kristina Griffith

Mathematics

13 July, 02:22

A poll shows that 80% of voters in a city favor of building a new railway. If 22 selected at random, what is the probability exactly 7 of them will vote in favor of new railway? A. 20 B. 0 C. 80

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Kassandra Bernard · Answer 1

Given that 80% of the voters in a city favour the building of the new railway, out of the 22 selected random people, approximately 17.6 or 18 will be in favour of the railway construction. The probability that exactly 7 of them will favour the construction is 80%. Thus, the answer to this item is C.