Question: Version:0.9 StartHTML:0000000105 EndHTML:0000001130 StartFragment:0000000141 EndFragment:0000001090 Chelsea is taking her MATH 1227 exam is presented with 30 multiple choice ques tions, each with 5 different answers.

Version:0.9 StartHTML:0000000105 EndHTML:0000001130 StartFragment:0000000141 EndFragment:0000001090

Chelsea is taking her MATH 1227 exam is presented with 30 multiple choice ques

tions, each with 5 different answers. On any given question she knows the answer with prob

ability 0.5. If she does not know the answer, then she guesses randomly (she may guess the

correct answer or she may guess the wrong answer). Write an expression for the probability

that Chelsea gets at least 29 questions correct on her exam.

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