February 22, 2017

Homework Help: Probability

Posted by Student on Sunday, March 4, 2012 at 2:02pm.

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct?

A. 0.23
B. 0.34
C. 0.66
D. 0.78

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