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Colt1911 [192]
1 year ago
7

A student has to take two quizzes tomorrow. He has only enough time to study for one of them. The history quiz has 5 true or fal

se questions. The science quiz has 3 multiple choice questions.

Mathematics
2 answers:
nalin [4]1 year ago
6 0

Answer:

Answer:

Option B is correct.

Miguel should study for the Science quiz as he will do worse in that quiz by guessing.

Step-by-step explanation:

Miguel has to take two quizzes

1) 4 true or false questions on History with a 0.5 chance of acing the quiz

Expected number of correct questions = np

n = number of questions

p = probability of acing the test

Expected number of correct questions = 4 × 0.5 = 2

2) 3 multiple choice questions on Science with a 0.2 chance of acing the quiz.

Expected number of correct questions = 0.2 × 3 = 0.6

It is evident that guessing would yield a worse result in the Science quiz with less than 1 question expected to be correct than history, where he is still expected to get 2 questions correctly by guessing.

dalvyx [7]1 year ago
5 0

Answer:

He is correct

Step-by-step explanation:

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