AP Statistics First Semester Final Exam Review
UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
What is an example of data gathering? - CORRECT ANSWER A telephone survey,
counting flowers, filling out a questionnaire, giving eye exams, and reaching conclusions are
all examples of data gathering.
What are categorical data? - CORRECT ANSWER Categorical data refers to data that
can be divided into groups or categories, such as the different types of anteaters.
What are continuous data? - CORRECT ANSWER Continuous data can take any value
within a given range, such as average annual income.
What are the categorical variables in a survey? - CORRECT ANSWER Categorical
variables include dad's occupation, whether mom works, and kind of pets.
True or False: The only discrete quantitative data in a neighbor survey is family size. -
CORRECT ANSWER True.
Which type of chart is used for categorical data? - CORRECT ANSWER A bar chart is
used for categorical data, while a histogram is used for continuous data.
What is the sum of the relative frequency column in a complete table? - CORRECT
ANSWER The sum must equal 1.
What are histograms most useful for? - CORRECT ANSWER Histograms are most
useful in displaying large numeric data sets.
What is the relative frequency of students who study 5 - 6 hours a day? - CORRECT
ANSWER The relative frequency is 0.300.
,What is the cumulative relative frequency of students who study 4 hours or fewer a day? -
CORRECT ANSWER The cumulative relative frequency is 0.615.
Estimate the relative frequency of countries with 20 - 22 days of no rainfall. - CORRECT
ANSWER The estimated relative frequency is 0.32.
Which league had the team that hit the most home runs? - CORRECT ANSWER The
National League had the team that hit the most home runs, with 149 home runs.
True or False: Most National League teams had home runs in the 90s. - CORRECT
ANSWER True.
How many fewer home runs did the team with the fewest home runs in the American League
have? - CORRECT ANSWER The team had 4 fewer home runs than the team with the
fewest in the National League.
What characteristic can't a symmetric distribution have? - CORRECT ANSWER A
long tail on one side.
What is a haphazard sample? - CORRECT ANSWER A haphazard sample is a
sampling strategy least likely to produce good estimates of population parameters.
What is the mean of the observations {11,6,2,5,8,4,4,9}? - CORRECT ANSWER The
mean is 6.875.
What is the median of the observations {11,6,2,5,8,4,4,9}? - CORRECT
ANSWER The median is 5.5.
Which measure of center should be used for skewed distributions? - CORRECT
ANSWER The median should be used for skewed distributions, such as housing prices.
, What is the favorite FM station based on survey data? - CORRECT ANSWER The
mode is 89.1.
What is the sample standard deviation of {71, 75, 65, 73, 69, 77, 67}? - CORRECT
ANSWER The sample standard deviation is 4.
Which statement about sample standard deviation is false? - CORRECT ANSWER The
standard deviation is negative when there are extreme values in the sample.
What does a box plot represent? - CORRECT ANSWER A box plot represents the
distribution of a dataset, including its median, quartiles, and potential outliers.
What is the median for the data of babies born in the U.S. in 1984? - CORRECT
ANSWER The median is 308.
What is the upper quartile? - CORRECT ANSWER The upper quartile (Q3) is the
value that separates the highest 25% of data from the rest.
What is the lower quartile? - CORRECT ANSWER The lower quartile (Q1) is the
value that separates the lowest 25% of data from the rest.
What is the interquartile range (IQR)? - CORRECT ANSWER The interquartile range
is the difference between the upper quartile (Q3) and the lower quartile (Q1), indicating the
range of the middle 50% of the data.
What is a lower outlier? - CORRECT ANSWER A lower outlier is a data point that is
significantly lower than the rest of the data, typically defined as being below Q1 - 1.5 * IQR.
Why is the IQR considered a resistant statistic? - CORRECT ANSWER The IQR is
considered resistant because it is not significantly affected by extreme values or outliers.
UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
What is an example of data gathering? - CORRECT ANSWER A telephone survey,
counting flowers, filling out a questionnaire, giving eye exams, and reaching conclusions are
all examples of data gathering.
What are categorical data? - CORRECT ANSWER Categorical data refers to data that
can be divided into groups or categories, such as the different types of anteaters.
What are continuous data? - CORRECT ANSWER Continuous data can take any value
within a given range, such as average annual income.
What are the categorical variables in a survey? - CORRECT ANSWER Categorical
variables include dad's occupation, whether mom works, and kind of pets.
True or False: The only discrete quantitative data in a neighbor survey is family size. -
CORRECT ANSWER True.
Which type of chart is used for categorical data? - CORRECT ANSWER A bar chart is
used for categorical data, while a histogram is used for continuous data.
What is the sum of the relative frequency column in a complete table? - CORRECT
ANSWER The sum must equal 1.
What are histograms most useful for? - CORRECT ANSWER Histograms are most
useful in displaying large numeric data sets.
What is the relative frequency of students who study 5 - 6 hours a day? - CORRECT
ANSWER The relative frequency is 0.300.
,What is the cumulative relative frequency of students who study 4 hours or fewer a day? -
CORRECT ANSWER The cumulative relative frequency is 0.615.
Estimate the relative frequency of countries with 20 - 22 days of no rainfall. - CORRECT
ANSWER The estimated relative frequency is 0.32.
Which league had the team that hit the most home runs? - CORRECT ANSWER The
National League had the team that hit the most home runs, with 149 home runs.
True or False: Most National League teams had home runs in the 90s. - CORRECT
ANSWER True.
How many fewer home runs did the team with the fewest home runs in the American League
have? - CORRECT ANSWER The team had 4 fewer home runs than the team with the
fewest in the National League.
What characteristic can't a symmetric distribution have? - CORRECT ANSWER A
long tail on one side.
What is a haphazard sample? - CORRECT ANSWER A haphazard sample is a
sampling strategy least likely to produce good estimates of population parameters.
What is the mean of the observations {11,6,2,5,8,4,4,9}? - CORRECT ANSWER The
mean is 6.875.
What is the median of the observations {11,6,2,5,8,4,4,9}? - CORRECT
ANSWER The median is 5.5.
Which measure of center should be used for skewed distributions? - CORRECT
ANSWER The median should be used for skewed distributions, such as housing prices.
, What is the favorite FM station based on survey data? - CORRECT ANSWER The
mode is 89.1.
What is the sample standard deviation of {71, 75, 65, 73, 69, 77, 67}? - CORRECT
ANSWER The sample standard deviation is 4.
Which statement about sample standard deviation is false? - CORRECT ANSWER The
standard deviation is negative when there are extreme values in the sample.
What does a box plot represent? - CORRECT ANSWER A box plot represents the
distribution of a dataset, including its median, quartiles, and potential outliers.
What is the median for the data of babies born in the U.S. in 1984? - CORRECT
ANSWER The median is 308.
What is the upper quartile? - CORRECT ANSWER The upper quartile (Q3) is the
value that separates the highest 25% of data from the rest.
What is the lower quartile? - CORRECT ANSWER The lower quartile (Q1) is the
value that separates the lowest 25% of data from the rest.
What is the interquartile range (IQR)? - CORRECT ANSWER The interquartile range
is the difference between the upper quartile (Q3) and the lower quartile (Q1), indicating the
range of the middle 50% of the data.
What is a lower outlier? - CORRECT ANSWER A lower outlier is a data point that is
significantly lower than the rest of the data, typically defined as being below Q1 - 1.5 * IQR.
Why is the IQR considered a resistant statistic? - CORRECT ANSWER The IQR is
considered resistant because it is not significantly affected by extreme values or outliers.
