Some hotels ask their guests to rate the hotel's services as excellent, very good,
good, and poor. This is an example of the:
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ordinal scale.
The results of a survey of 800 married couples and the number of children they had
are shown below. If a couple is selected at random, what is the probability that the
couple will have at least two children?
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.825
,An experiment consists of rolling two fair six-sided dice and finding the sum of the
spots. How many outcomes are in the sample space? What is the probability of rolling
a sum of 12?
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36; 1/36
Which of the following would likely display a negative relationship when creating a
scatter diagram?
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The number of classes a student misses during a semester and the grade
obtained in the course
A recent survey finds that 78% of people spend an average of at least 30 minutes per
day surfing the internet while they are at work. Let A = Spending an average of at least
30 minutes each day surfing the internet while at work. Which of the following is the
complement of A?
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Spending an average of less than 30 minutes per day surfing the internet
while at work.
The sum of frequencies for all classes will always equal to:
,Give this one a try later!
the number of observations in a data set.
A small town has 5600 residents. The residents in the town were asked whether or not
they favored building a new bridge across the river. You are given the following
information on the residents' responses, broken down by sex. What is the probability
that a randomly selected resident is in favor of building the bridge?
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.30
Which of the following is not a recommended guideline for creating an effective
graphical display?
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Use three dimensions whenever possible to give the display depth.
Before drawing any conclusions about the relationship between two variables shown
in a crosstabulation, you should:
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investigate whether any hidden variables could affect the conclusions.
, Given the following information:
Standard deviation = 8Coefficient of variation = 64%The mean is
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12.5.
Suppose that of all college graduates, 80% choose their particular profession
because they believe the work will be fulfilling, 50% believe they can achieve a high
salary, and 40% believe they will have both. What is the probability that a college
graduate chooses his particular profession because he believes that the work will be
fulfilling, he believes that he can achieve a high salary, or both?
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.90
A data set has the following five-number summary: {31, 50, 58, 62, and 87}. Which of
the following pairs of values in this data set would be considered outliers?
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31 and 81
A company wants to enhance the benefits for its yearly healthcare package offering.
It observes the set of employees who smoke on their break times at 10 a.m., 12 p.m.,
good, and poor. This is an example of the:
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ordinal scale.
The results of a survey of 800 married couples and the number of children they had
are shown below. If a couple is selected at random, what is the probability that the
couple will have at least two children?
Give this one a try later!
.825
,An experiment consists of rolling two fair six-sided dice and finding the sum of the
spots. How many outcomes are in the sample space? What is the probability of rolling
a sum of 12?
Give this one a try later!
36; 1/36
Which of the following would likely display a negative relationship when creating a
scatter diagram?
Give this one a try later!
The number of classes a student misses during a semester and the grade
obtained in the course
A recent survey finds that 78% of people spend an average of at least 30 minutes per
day surfing the internet while they are at work. Let A = Spending an average of at least
30 minutes each day surfing the internet while at work. Which of the following is the
complement of A?
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Spending an average of less than 30 minutes per day surfing the internet
while at work.
The sum of frequencies for all classes will always equal to:
,Give this one a try later!
the number of observations in a data set.
A small town has 5600 residents. The residents in the town were asked whether or not
they favored building a new bridge across the river. You are given the following
information on the residents' responses, broken down by sex. What is the probability
that a randomly selected resident is in favor of building the bridge?
Give this one a try later!
.30
Which of the following is not a recommended guideline for creating an effective
graphical display?
Give this one a try later!
Use three dimensions whenever possible to give the display depth.
Before drawing any conclusions about the relationship between two variables shown
in a crosstabulation, you should:
Give this one a try later!
investigate whether any hidden variables could affect the conclusions.
, Given the following information:
Standard deviation = 8Coefficient of variation = 64%The mean is
Give this one a try later!
12.5.
Suppose that of all college graduates, 80% choose their particular profession
because they believe the work will be fulfilling, 50% believe they can achieve a high
salary, and 40% believe they will have both. What is the probability that a college
graduate chooses his particular profession because he believes that the work will be
fulfilling, he believes that he can achieve a high salary, or both?
Give this one a try later!
.90
A data set has the following five-number summary: {31, 50, 58, 62, and 87}. Which of
the following pairs of values in this data set would be considered outliers?
Give this one a try later!
31 and 81
A company wants to enhance the benefits for its yearly healthcare package offering.
It observes the set of employees who smoke on their break times at 10 a.m., 12 p.m.,
