MULTIPLE CHOICE QUESTIONS

1

. A frequency distribution is a tabular summary of data showing the

a

. fraction of items in several classes

b

. percentage of items in several classes

c

. relative percentage of items in several classes

d

. number of items in several classes

2

. A frequency distribution is

a

. a tabular summary of a set of data showing the relative frequency

b

. a graphical form of representing data

c

. a tabular summary of a set of data showing the frequency of items in each of several nonoverlapping classes

d

. a graphical device for presenting qualitative data

3

. A tabular summary of a set of data showing the fraction of the total number of items in several classes is a

a

. frequency distribution

b

. relative frequency distribution

c

. frequency

d

. cumulative frequency distribution

4

. Qualitative data can be graphically represented by using a(n)

a

. histogram

b

. frequency polygon

c

. ogive

d

. bar graph

5

. The relative frequency of a class is computed by

a

. dividing the midpoint of the class by the sample size

b

. dividing the frequency of the class by the midpoint

c

. dividing the sample size by the frequency of the class

d

. dividing the frequency of the class by the sample size

6

. The sum of frequencies for all classes will always equal

a

. 1

b

. the number of elements in a data set

c

. the number of classes

d

. a value between 0 and 1

7

. 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

. a line graph

b

. only a bar graph

c

. only a pie chart

d

. both a bar graph and a pie chart

8

. A researcher is gathering data from four geographical areas designated:

South = 1; North = 2; East = 3; West = 4

. The designated geographical regions represent

a

. qualitative data

b

. quantitative data

c

. label data

d

. either quantitative or qualitative data

9

. A situation in which conclusions based upon aggregated crosstablulation are different from unaggregated crosstabulation is known as

a

. wrong crosstabulation

b

. Simpson’s rule

c

. Simpson’s paradox

d

. aggregated crosstabulation

10

. A cumulative relative frequency distribution shows

a

. the proportion of data items with values less than or equal to the upper limit of each class

b

. the proportion of data items with values less than or equal to the lower limit of each class

c

. the percentage of data items with values less than or equal to the upper limit of each class

d

. the percentage of data items with values less than or equal to the lower limit of each class

11

. If several frequency distributions are constructed from the same data set, the distribution with the widest class width will have the

a

. fewest classes

b

. most classes

c

. same number of classes as the other distributions since all are constructed from the same data

12

. The sum of the relative frequencies for all classes will always equal

a

. the sample size

b

. the number of classes

c

. one

d

. any value larger than one

13

. The sum of the percent frequencies for all classes will always equal

a

. one

b

. the number of classes

c

. the number of items in the study

d

. 100

14

. The most common graphical presentation of quantitative data is a

a

. histogram

b

. bar graph

c

. relative frequency

d

. pie chart

15

. In constructing a frequency distribution, the approximate class width is computed as

a

. (largest data value – smallest data value)/number of classes

b

. (largest data value – smallest data value)/sample size

c

. (smallest data value – largest data value)/sample size

d

. largest data value/number of classes

16

. In constructing a frequency distribution, as the number of classes are decreased, the class width

a

. decreases

b

. remains unchanged

c

. increases

d

. can increase or decrease depending on the data values

17

. The difference between the lower class limits of adjacent classes provides the

a

. number of classes

b

. class limits

c

. class midpoint

d

. class width

18

. In a cumulative frequency distribution, the last class will always have a cumulative frequency equal to

a

. one

b

. 100%

c

. the total number of elements in the data set

19

. In a cumulative relative frequency distribution, the last class will have a cumulative relative frequency equal to

a

. one

b

. zero

c

. the total number of elements in the data set

20

. In a cumulative percent frequency distribution, the last class will have a cumulative percent frequency equal to

a

. one

b

. 100

c

. the total number of elements in the data set