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

Question

Mathematics

Jazlynn Dominguez

30 May, 01:26

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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Marina Koch · 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.