In Vietnam, the probability of rain is 70%. Find the probability of it raining at most 2 days in a week.
Math 134 Exam 2 Review

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Mathematics
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University
•
Hard
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1.
FLASHCARD QUESTION
Front
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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