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Exam 3: Probability Concepts and Distributions

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Question 31

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The standard normal distribution is a special case of the normal distribution in which ________.

A) the mean = 0 and the variance = 0
B) the mean = 1 and the variance = 1
C) the mean = 1 and the variance = 0
D) the mean = 0 and the variance = 1

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Question 32

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What is the probability of flipping a quarter and a nickel and getting heads on both coins or getting tails on both coins?

A)
B)
C)
D) 1

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Question 33

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What is the probability of flipping a quarter three times and getting tails all three times?

At the Simple Sub Shop,there are five types of sandwiches and three different beverages.Lunch Special A consists of a club sandwich and a cola.What is the probability that someone would choose a sandwich and a beverage at random and end up with Lunch Special A?

In probability theory,what is the outcome of an experiment?

A continuous random variable defined over one or more intervals of real numbers can have ________.

At a particular toll booth,20% of vehicles use transponders while the rest have their license plates scanned.Usually,150 vehicles pass this toll booth during any one hour time period.During the next hour,what is the probability that 20 or less vehicles will pass through using a transponder?

Identify and compare the three perspectives that can be used to define probability.

A statement made by experts on a TV show that the Michigan Tech Huskies men's hockey team has one chance in four of winning the NCAA Frozen Four in 2014 is an example of ________.

What is the likelihood of finding a price of $3.85 or more for a gallon of gasoline from a normally distributed population of gas prices? Assume μ = $3.78 and σ = $0.05.

A joint probability distribution for discrete random variables X and Y is denoted by ________.

Which of the following is true of the triangular distribution?

According to the classical definition of probability,probabilities can be deduced from theoretical arguments if the process that generates outcomes is known.

Since there are seven days in a week,there is a 14% chance that a meeting will be held on a Monday.This is an application of the ________ definition of probability.

The probability of Barack hitting a homerun is one chance in fifty.What is the probability that he will not hit a homerun?

What is the difference between a mutually exclusive event and an independent event?

The normal continuous probability distribution is characterized by two parameters,________.

A probability distribution that specifies the probabilities of outcomes of two different variables that occur at the same time is called a simultaneous probability distribution.

A binomial distribution models several independent replications of a ________.

For a uniform distribution,the area under the density function is equal to one.