Thursday, August 4, 2011

Probability: how likely is it that Elisabete will win the election if....?

An election is being held at your school to determine who will be treasurer of the student council. Theresa and Elisabete are the candidates. The day before the election, Elisabete takes a poll of 74 students and finds that 30 will vote for her. There are 1148 students in the school and all are expected to vote. How likely is it that Elisabete will win?

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