Math 134 Exam 2 Review

Math 134 Exam 2 Review

Assessment

Flashcard

Mathematics

University

Hard

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16 questions

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1.

FLASHCARD QUESTION

Front

In Vietnam, the probability of rain is 70%. Find the probability of it raining at most 2 days in a week.

Back

.0287

2.

FLASHCARD QUESTION

Front

Find the mean of a binomial distribution with n=50 and p=0.4

Back

20

3.

FLASHCARD QUESTION

Front

Following a normal distribution, the mean wingspan of a hummingbird is 3.5 mm with a standard deviation of 0.76 mm. What percentage of hummingbirds have wingspans between 3.4 and 4.1 mm?

Back

33.7%

4.

FLASHCARD QUESTION

Front

Compute the probability that a randomly selected senator from the 112th U.S Congress is a Republican or a Female.

Back

.59

5.

FLASHCARD QUESTION

Front

Find the mean and the standard deviation of guessing correctly on a 5 question true-false quiz.

Back

μ = 2.5; σ = 1.1

6.

FLASHCARD QUESTION

Front

What is the formula for the mean of a binomial distribution?

Back

μ = n * p

7.

FLASHCARD QUESTION

Front

What is the standard deviation of a binomial distribution?

Back

σ = √(n * p * (1 - p))

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