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Mathematics, 27.11.2019 07:31 Tymere2011

1.) a multiple choice test has 7 questions each of which has 4 possible answers, only one of which is correct. if judy, who forgot to study for the test, guesses on all questions, what is the probability that she will answer 3 or more questions correctly?

0.311

0.0156

0.244

0.756

2.) in a survey of 300 college graduates, 63% reported that they entered a profession closely related to their college major. if 9 of those survey subjects are randomly selected without replacement for a follow-up survey, what is the probability that 4 or fewer of them entered a profession closely related to their college major?

0.149

0.0512

0.793

0.207

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