AP Statistics Semester #1 Final Review Part 1
Exam UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
Heights, in inches, for the 200 graduating seniors from Washington High School are
summarized in the frequency table below. Which of the following statements about the
median height is true? - CORRECT ANSWER
Professor James gave the same test to his three sections of statistics students. On the 35-
question test, the highest score was 32 and the lowest was 15. Based on the information
displayed in the boxplots above, which of the following statements is true? - CORRECT
ANSWER
A well-designed experiment should have which of the following characteristics?
I. Subjects assigned randomly to treatments
II. A control group or at least two treatment groups
III. Replication - CORRECT ANSWER
The distribution of colors of candies in a bag is as follows. If two candies are randomly
drawn from the bag with replacement, what is the probability that they are the same color? -
CORRECT ANSWER
Each of 133 children in a sample was asked to choose a pencil. Three different colors were
available: yellow, red, and blue. The number of 2-year olds and 3-year olds who selected each
color is shown in the table above. In a test of independence of age and color, which of the
following is used as the expected cell count for 2-year olds who select a yellow pencil? -
CORRECT ANSWER
Approximately 52 percent of all recent births were boys. In a simple random sample of 100
recent births, 49 were boys and 51 were girls. The most likely explanation for the difference
between the observed results and the expected results in this case is - CORRECT
ANSWER
, Each person in a random sample of adults was asked how many DVDs he or she owned.
Summary statistics are given below, which of the following statements is true? - CORRECT
ANSWER
For flights from a particular airport in January, there is a 30 percent chance of a flight being
delayed because of icy weather. If a flight is delayed because of icy weather, there is a 10
percent chance the flight will also be delayed because of a mechanical problem. If a flight is
not delayed because of icy weather, there is a 5 percent chance that it will be delayed because
of a mechanical problem. If one flight is selected at random from the airport in January, what
is the probability that the flight selected will have at least one of the two types of delays? -
CORRECT ANSWER
A survey was administered to parents of high school students in a certain state to see if the
parents thought the students' academic needs were being met. To select the sample, the
parents were divided into two groups— one group of parents who live in cities with
populations of more than 100,000 and the other group of parents who live in cities with
populations less than or equal to 100,000. A random sample of 100 parents from each group
was taken. Which of the following statements about the sample of 200 parents is true? -
CORRECT ANSWER
A popular computer card game keeps track of the number of games played and the number of
games won on that computer. The cards are shuffled before each game, so the outcome of the
game is independent from one game to the next and is based on the skill of the player. Let X
represent the number of games that have been won out of 100 games. Under which of the
following situations would X be a binomial random variable? - CORRECT ANSWER
A carnival game allows the player a choice of simultaneously rolling two, four, six, eight, or
ten fair dice. Each die has six faces numbered 1 through 6, respectively. After the player rolls
the dice, the numbers that appear on the faces that land up are recorded. The player wins if
the greatest number recorded is 1 or 2. How many dice should the player choose to roll to
maximize the chance of winning? - CORRECT ANSWER
A school is having a contest in which students guess the number of candies in a jar. The
student whose guess is closest to the correct number of candies in the jar wins a prize. The
number of candies guessed by male and female students is shown in the back-to-back
stemplot below. Which of the following statements is true about the distributions of guesses?
- CORRECT ANSWER
Exam UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
Heights, in inches, for the 200 graduating seniors from Washington High School are
summarized in the frequency table below. Which of the following statements about the
median height is true? - CORRECT ANSWER
Professor James gave the same test to his three sections of statistics students. On the 35-
question test, the highest score was 32 and the lowest was 15. Based on the information
displayed in the boxplots above, which of the following statements is true? - CORRECT
ANSWER
A well-designed experiment should have which of the following characteristics?
I. Subjects assigned randomly to treatments
II. A control group or at least two treatment groups
III. Replication - CORRECT ANSWER
The distribution of colors of candies in a bag is as follows. If two candies are randomly
drawn from the bag with replacement, what is the probability that they are the same color? -
CORRECT ANSWER
Each of 133 children in a sample was asked to choose a pencil. Three different colors were
available: yellow, red, and blue. The number of 2-year olds and 3-year olds who selected each
color is shown in the table above. In a test of independence of age and color, which of the
following is used as the expected cell count for 2-year olds who select a yellow pencil? -
CORRECT ANSWER
Approximately 52 percent of all recent births were boys. In a simple random sample of 100
recent births, 49 were boys and 51 were girls. The most likely explanation for the difference
between the observed results and the expected results in this case is - CORRECT
ANSWER
, Each person in a random sample of adults was asked how many DVDs he or she owned.
Summary statistics are given below, which of the following statements is true? - CORRECT
ANSWER
For flights from a particular airport in January, there is a 30 percent chance of a flight being
delayed because of icy weather. If a flight is delayed because of icy weather, there is a 10
percent chance the flight will also be delayed because of a mechanical problem. If a flight is
not delayed because of icy weather, there is a 5 percent chance that it will be delayed because
of a mechanical problem. If one flight is selected at random from the airport in January, what
is the probability that the flight selected will have at least one of the two types of delays? -
CORRECT ANSWER
A survey was administered to parents of high school students in a certain state to see if the
parents thought the students' academic needs were being met. To select the sample, the
parents were divided into two groups— one group of parents who live in cities with
populations of more than 100,000 and the other group of parents who live in cities with
populations less than or equal to 100,000. A random sample of 100 parents from each group
was taken. Which of the following statements about the sample of 200 parents is true? -
CORRECT ANSWER
A popular computer card game keeps track of the number of games played and the number of
games won on that computer. The cards are shuffled before each game, so the outcome of the
game is independent from one game to the next and is based on the skill of the player. Let X
represent the number of games that have been won out of 100 games. Under which of the
following situations would X be a binomial random variable? - CORRECT ANSWER
A carnival game allows the player a choice of simultaneously rolling two, four, six, eight, or
ten fair dice. Each die has six faces numbered 1 through 6, respectively. After the player rolls
the dice, the numbers that appear on the faces that land up are recorded. The player wins if
the greatest number recorded is 1 or 2. How many dice should the player choose to roll to
maximize the chance of winning? - CORRECT ANSWER
A school is having a contest in which students guess the number of candies in a jar. The
student whose guess is closest to the correct number of candies in the jar wins a prize. The
number of candies guessed by male and female students is shown in the back-to-back
stemplot below. Which of the following statements is true about the distributions of guesses?
- CORRECT ANSWER
