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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

User Moonbeam
by
8.0k points

1 Answer

1 vote

Answer:

0.0156

Explanation:

1/4 * 1/4 * 1/4 = 1/64 = 0.0156

idk for the second one

User Rich Luick
by
8.6k points
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