MATH 225N STATISTICS WEEK FOUR
CONTINGENCY TABLES EXAM PREP 2026
PRACTICE QUESTIONS AND EXPERT
VERIFIED SOLUTIONS GRADED A+
⩥ False. Answer: When the population of college professors is divided
into groups according to their rank (instructor, assistant professor, etc.)
and then several are selected from each group to make up a sample, the
sample is called a cluster sample.
⩥ True. Answer: The variable temperature is an example of quantitative
variable.
⩥ False. Answer: The height of basketball players is considered a
continuous variable.
⩥ Discrete. Answer: The number of ads on a one-hour television show is
what type of data?
⩥ Stratified. Answer: A researcher divided subjects into two groups
according to gender and then selected members from each group for her
sample. What sampling method was the researcher using?
, ⩥ Nominal. Answer: Data that can be classified according to color are
measured on what scale?
⩥ Observational Study. Answer: A study that involves no researcher
intervention is called an __________________ __________________.
⩥ Descriptive and Influential. Answer: The major branches of statistics
are ____________________ and ___________________.
⩥ Gambling and Insurance. Answer: Two use of probability are
___________________ and ___________________.
⩥ Population. Answer: The group of all subjects under study is called a
_______________________.
⩥ Sample. Answer: A group of subjects selected from the group of all
subjects under study is called a ____________________.
⩥ False. Answer: In the construction of a frequency distribution, it is a
good idea to have overlapping class limits, such as 10-20, 20-30, 30-40.
⩥ False. Answer: Histograms can be drawn by using vertical or
horizontal bars.
CONTINGENCY TABLES EXAM PREP 2026
PRACTICE QUESTIONS AND EXPERT
VERIFIED SOLUTIONS GRADED A+
⩥ False. Answer: When the population of college professors is divided
into groups according to their rank (instructor, assistant professor, etc.)
and then several are selected from each group to make up a sample, the
sample is called a cluster sample.
⩥ True. Answer: The variable temperature is an example of quantitative
variable.
⩥ False. Answer: The height of basketball players is considered a
continuous variable.
⩥ Discrete. Answer: The number of ads on a one-hour television show is
what type of data?
⩥ Stratified. Answer: A researcher divided subjects into two groups
according to gender and then selected members from each group for her
sample. What sampling method was the researcher using?
, ⩥ Nominal. Answer: Data that can be classified according to color are
measured on what scale?
⩥ Observational Study. Answer: A study that involves no researcher
intervention is called an __________________ __________________.
⩥ Descriptive and Influential. Answer: The major branches of statistics
are ____________________ and ___________________.
⩥ Gambling and Insurance. Answer: Two use of probability are
___________________ and ___________________.
⩥ Population. Answer: The group of all subjects under study is called a
_______________________.
⩥ Sample. Answer: A group of subjects selected from the group of all
subjects under study is called a ____________________.
⩥ False. Answer: In the construction of a frequency distribution, it is a
good idea to have overlapping class limits, such as 10-20, 20-30, 30-40.
⩥ False. Answer: Histograms can be drawn by using vertical or
horizontal bars.
