MATH 225N WEEK 8 STATISTICS QUIZ
CERTIFICATION EVALUATION EXAMS 2026
COMPLETE QUESTIONS AND ANSWERS
GUARANTEED TO PASS
◉ Quiz 1: Statistics is defined as a body of techniques used to
facilitate the collection, organization, presentation, analysis and
interpretation of numerical information for the purpose of making
better decisions. Answer: True
◉ Quiz 1: A frequency distribution is grouping of data into
categories showing the number of observations in each category.
Answer: True
◉ Quiz 1: The width of each bar in a histogram corresponds to the
Answer: class width or the differences between the boundaries of
the class.
midpoint of each class
◉ Quiz 1:Data may be classified by one of the four levels of
measurement. What is the name of the lowest level? Answer:
nominal
, ◉ Quiz 1: When polygons or histograms are constructed, which axis
must show the true zero or "origin"? Answer: The vertical axis.
◉ Quiz 2:If prostate cancer is known as an old man's disease which
measure of central tendency would you use to describe the age of
onset. Answer: mean
◉ Quiz 2:Which measures of central tendency are not affected by
extremely low or extremely high values? Answer: mode and median
◉ Quiz 2:A study was conducted to determine how much, if at all,
does use of oral contraceptives increase a woman's chances of
developing a thromboembolism. What is the independent variable?
Answer: use of oral contraceptives
◉ Quiz 2:Half of the observations are always smaller than the:
Answer: median
◉ Quiz 2:How hot does it get in Death Valley? Assume that the
following data are taken from a study conducted by the National
Park System, of which Death Valley is a unit. The ground
temperatures in degrees Farenheit were taken from May to
November in the vicinity of Furnace Creek. Compute the median for
these ground temperatures. Round your answer to the nearest tenth.
148 153 167 172 196 178 193
CERTIFICATION EVALUATION EXAMS 2026
COMPLETE QUESTIONS AND ANSWERS
GUARANTEED TO PASS
◉ Quiz 1: Statistics is defined as a body of techniques used to
facilitate the collection, organization, presentation, analysis and
interpretation of numerical information for the purpose of making
better decisions. Answer: True
◉ Quiz 1: A frequency distribution is grouping of data into
categories showing the number of observations in each category.
Answer: True
◉ Quiz 1: The width of each bar in a histogram corresponds to the
Answer: class width or the differences between the boundaries of
the class.
midpoint of each class
◉ Quiz 1:Data may be classified by one of the four levels of
measurement. What is the name of the lowest level? Answer:
nominal
, ◉ Quiz 1: When polygons or histograms are constructed, which axis
must show the true zero or "origin"? Answer: The vertical axis.
◉ Quiz 2:If prostate cancer is known as an old man's disease which
measure of central tendency would you use to describe the age of
onset. Answer: mean
◉ Quiz 2:Which measures of central tendency are not affected by
extremely low or extremely high values? Answer: mode and median
◉ Quiz 2:A study was conducted to determine how much, if at all,
does use of oral contraceptives increase a woman's chances of
developing a thromboembolism. What is the independent variable?
Answer: use of oral contraceptives
◉ Quiz 2:Half of the observations are always smaller than the:
Answer: median
◉ Quiz 2:How hot does it get in Death Valley? Assume that the
following data are taken from a study conducted by the National
Park System, of which Death Valley is a unit. The ground
temperatures in degrees Farenheit were taken from May to
November in the vicinity of Furnace Creek. Compute the median for
these ground temperatures. Round your answer to the nearest tenth.
148 153 167 172 196 178 193
