The collection of all elements of interest in a particular study is
Question 1
The collection of all elements of interest in a particular study is
the population |
the sampling |
statistical inference |
Data and Statistics |
5 points
Question 2
A portion of the population selected to represent the population is called
statistical inference |
Data and Statistics |
a census |
a sample |
5 points
Question 3
The process of analyzing sample data in order to draw conclusions about the characteristics of a population is called
Data and Statistics |
statistical inference |
data analysis |
data summarization |
5 points
Question 4
Categorical data
indicate either how much or how many |
annot be numeric |
are labels used to identify attributes of elements |
must be nonnumeric |
5 points
Question 5
Quantitative data
are always nonnumeric |
may be either numeric or nonnumeric |
are always numeric |
None of these alternatives is correct. |
5 points
Question 6
In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of a
categorical variable |
quantitative variable |
categorical or quantitative variable, depending on how the respondents answered the question |
None of these alternatives is correct. |
5 points
Question 7
The average age in a sample of 190 students at City College is 22. As a result of this sample, it can be concluded that the average age of all the students at City College
must be more than 22, since the population is always larger than the sample |
must be less than 22, since the sample is only a part of the population |
could not be 22 |
could be larger, smaller, or equal to 22 |
5 points
Question 8
A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the average age of all the students in the university is 24 years. This is an example of
a census |
Data and Statistics |
an experiment |
statistical inference |
5 points
Question 9
A graphical presentation of the relationship between two variables is
an ogive |
a histogram |
either an ogive or a histogram, depending on the type of data |
a scatter diagram |
5 points
Question 10
The can be used to show the rank order and shape of a data set simultaneously.
Ogive |
pie chart |
stem-and-leaf display |
bar chart |
5 points
Question 11
Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?
histogram |
box plot |
dot plot |
crosstabulation |
10 points
Question 12
Categorical data can be graphically represented by using a(n)
histogram |
frequency polygon |
ogive |
bar chart |
10 points
Question 13
A tabular summary of a set of data showing the fraction of the total number of items in several classes is a
frequency distribution |
relative frequency distribution |
frequency |
cumulative frequency distribution |
10 points
Question 14
Fifteen percent of the students in a school of Business Administration are majoring in Economics, 20% in Finance, 35% in Management, and 30% in Accounting. The graphical device(s) which can be used to present these data is (are)
a line chart |
only a bar chart |
only a pie chart |
both a bar chart and a pie chart |
10 points
Question 15
A line that provides an approximation of the relationship between two variables is known as the
relationship line |
Trend line |
line of 2 variables |
approximation of two variables |
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Solution: The collection of all elements of interest in a particular study is