WGU D772 OBJECTIVE ASSESSMENT AND PRACTICE
EXAM NEWEST 2026 TEST BANK| D772 STATISTICAL
DATA LITERACY OA FINAL WITH COMPLETE 300
REAL EXAM QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+ (MOST RECENT!!)
A psychologist randomly split the participants of an experiment into four
groups. Each participant was given a maze to solve, but the maze lines
were a different color for each group. Each participant was given a score
for how long it took them to solve the maze. What is the explanatory
variable in this experiment? - ANSWER - The specific maze color
A company wants to create a graphical display to show the percentage of
employees who are in each of six departments. What is an appropriate
graphical display for this data? - ANSWER - Pie chart
The teacher of a free art class has the ages of the twelve students and
wants to see the distribution of the ages. Which graphical display is
appropriate to visualize the distribution of data? - ANSWER - Stem-and-
leaf plot
A teacher gave 105 students an exam. Each student received a score
between 0 and 100. The teacher wants to see the distribution of scores.
Which type of graphical display is appropriate to show the data? -
ANSWER - Histogram
pg. 1
,A movie theater employee recorded data on the people attending each of
four movies playing at the same time. For each person, the employee
recorded the movie the person watched and whether or not the person
made a purchase from the concession stand. Which graphical display is
appropriate to visualize the distribution of data? - ANSWER - Two-way
table
What is the mean of the following set of numbers: {41, 22, 43, 36, 42,
41, 37, 32, 39}? - ANSWER - 37
What is the mode of the following set of numbers: {54, 65, 63, 48, 65,
61, 51, 67, 70, 66}? - ANSWER - 65
There are eight cards in a set. They are numbered 1, 2, 3, 4, 5, 6, 7, and
8. A player pulls one card at random and checks to see if the result is less
than 3. If so, the player wins. What does 1/4 represent in this scenario? -
ANSWER - Probability of winning
Six cards each have their own color: green, red, yellow, black, white,
and gray. The deck is shuffled, and a person is given the chance to pull
one random card. If it is a color that is not black, not white, and not gray,
the person wins a prize. Which term describes 36 for this situation? -
ANSWER - Probability of winning
Which value could represent the probability of an event? - ANSWER -
0.01
pg. 2
,What characterizes a player's thought about an upcoming game if they
believe that the probability of winning is 83/100? - ANSWER - The
player believes it is likely that the team will win.
There are 6 pizza toppings on a menu: pepperoni, sausage, onions, green
peppers, bacon, and pineapple. What is the theoretical probability that a
randomly chosen pizza topping will be pepperoni or bacon? - ANSWER
- 1/3
A random experiment has {1, 2, 3, 4, 5, 6, 7, 8} for a sample space.
What is an example of disjoint events for this sample space? - ANSWER
- Event A is {1, 2, 3, 4}, and event B is {5, 6, 7, 8}.
The sample space for a random experiment is {Hannah, Li, Lucas, Lulu,
Malik, Maria, Nora, Oliver}. What are the outcomes corresponding to
the event "A and B" if event A is {Li, Lulu, Malik, Maria} and event B is
{Li, Lulu, Malik, Nora}? - ANSWER - {Li, Lulu, Malik}
A random experiment has the sample space {F, H, J, K, L, M, Q, S, X,
Y}. Event A is {H, K, Q, S, Y}. Event B is {F, J, K, M, S, X, Y}. Which
outcomes correspond to the event "not A"? - ANSWER - {F, J, L, M, X}
A random experiment has the sample space {2, 4, 6, 12, 19, 49, 58, 59,
60, 99}. Event A is {2, 19, 49, 58, 99}. Event B is {2, 4, 49, 58, 59, 60}.
What is the probability of the event "not A"? - ANSWER - Event 1 is
{A}, and event 2 is {not A}.
pg. 3
, A pizza parlor offers three options for a crust: crispy, traditional, and
deep dish. The probability that a pizza is sold with a traditional crust is
P(T)=16%. The probability that a pizza is sold with a deep dish crust is
P(D)=36%. What is P(T and D) for when a pizza is ordered? - ANSWER
- 0%
There is an 85% chance that a financial transaction leads to a gain of
$25. However, there is a 15% chance that it leads to a loss of $10. What
is the expected value of the transaction? - ANSWER - $19.75
A game has an expected value of $7.09. How should this be interpreted?
- ANSWER - A player will gain an average of $7.09 per game over
many games.
A bag contains 7 brown marbles, 8 white marbles, and 5 purple marbles.
Randomly picking a brown marble is worth 6 points. Randomly picking
a white marble is worth 3 points. Randomly picking a purple marble is
worth 9 points. What is the expected value of choosing one marble from
the bag? - ANSWER - 5.55
In a game of chance there are two possible moves, A and B, and each
can lead to either success or failure. The probability of A leading to
success is 10%, and if it succeeds it is worth 18 points. On the other
hand, the probability of B leading to success is 65%, and if it succeeds it
is worth 4 points. Which move should a player make, and why? -
ANSWER - B because the expected value is higher than that of A.
pg. 4
EXAM NEWEST 2026 TEST BANK| D772 STATISTICAL
DATA LITERACY OA FINAL WITH COMPLETE 300
REAL EXAM QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+ (MOST RECENT!!)
A psychologist randomly split the participants of an experiment into four
groups. Each participant was given a maze to solve, but the maze lines
were a different color for each group. Each participant was given a score
for how long it took them to solve the maze. What is the explanatory
variable in this experiment? - ANSWER - The specific maze color
A company wants to create a graphical display to show the percentage of
employees who are in each of six departments. What is an appropriate
graphical display for this data? - ANSWER - Pie chart
The teacher of a free art class has the ages of the twelve students and
wants to see the distribution of the ages. Which graphical display is
appropriate to visualize the distribution of data? - ANSWER - Stem-and-
leaf plot
A teacher gave 105 students an exam. Each student received a score
between 0 and 100. The teacher wants to see the distribution of scores.
Which type of graphical display is appropriate to show the data? -
ANSWER - Histogram
pg. 1
,A movie theater employee recorded data on the people attending each of
four movies playing at the same time. For each person, the employee
recorded the movie the person watched and whether or not the person
made a purchase from the concession stand. Which graphical display is
appropriate to visualize the distribution of data? - ANSWER - Two-way
table
What is the mean of the following set of numbers: {41, 22, 43, 36, 42,
41, 37, 32, 39}? - ANSWER - 37
What is the mode of the following set of numbers: {54, 65, 63, 48, 65,
61, 51, 67, 70, 66}? - ANSWER - 65
There are eight cards in a set. They are numbered 1, 2, 3, 4, 5, 6, 7, and
8. A player pulls one card at random and checks to see if the result is less
than 3. If so, the player wins. What does 1/4 represent in this scenario? -
ANSWER - Probability of winning
Six cards each have their own color: green, red, yellow, black, white,
and gray. The deck is shuffled, and a person is given the chance to pull
one random card. If it is a color that is not black, not white, and not gray,
the person wins a prize. Which term describes 36 for this situation? -
ANSWER - Probability of winning
Which value could represent the probability of an event? - ANSWER -
0.01
pg. 2
,What characterizes a player's thought about an upcoming game if they
believe that the probability of winning is 83/100? - ANSWER - The
player believes it is likely that the team will win.
There are 6 pizza toppings on a menu: pepperoni, sausage, onions, green
peppers, bacon, and pineapple. What is the theoretical probability that a
randomly chosen pizza topping will be pepperoni or bacon? - ANSWER
- 1/3
A random experiment has {1, 2, 3, 4, 5, 6, 7, 8} for a sample space.
What is an example of disjoint events for this sample space? - ANSWER
- Event A is {1, 2, 3, 4}, and event B is {5, 6, 7, 8}.
The sample space for a random experiment is {Hannah, Li, Lucas, Lulu,
Malik, Maria, Nora, Oliver}. What are the outcomes corresponding to
the event "A and B" if event A is {Li, Lulu, Malik, Maria} and event B is
{Li, Lulu, Malik, Nora}? - ANSWER - {Li, Lulu, Malik}
A random experiment has the sample space {F, H, J, K, L, M, Q, S, X,
Y}. Event A is {H, K, Q, S, Y}. Event B is {F, J, K, M, S, X, Y}. Which
outcomes correspond to the event "not A"? - ANSWER - {F, J, L, M, X}
A random experiment has the sample space {2, 4, 6, 12, 19, 49, 58, 59,
60, 99}. Event A is {2, 19, 49, 58, 99}. Event B is {2, 4, 49, 58, 59, 60}.
What is the probability of the event "not A"? - ANSWER - Event 1 is
{A}, and event 2 is {not A}.
pg. 3
, A pizza parlor offers three options for a crust: crispy, traditional, and
deep dish. The probability that a pizza is sold with a traditional crust is
P(T)=16%. The probability that a pizza is sold with a deep dish crust is
P(D)=36%. What is P(T and D) for when a pizza is ordered? - ANSWER
- 0%
There is an 85% chance that a financial transaction leads to a gain of
$25. However, there is a 15% chance that it leads to a loss of $10. What
is the expected value of the transaction? - ANSWER - $19.75
A game has an expected value of $7.09. How should this be interpreted?
- ANSWER - A player will gain an average of $7.09 per game over
many games.
A bag contains 7 brown marbles, 8 white marbles, and 5 purple marbles.
Randomly picking a brown marble is worth 6 points. Randomly picking
a white marble is worth 3 points. Randomly picking a purple marble is
worth 9 points. What is the expected value of choosing one marble from
the bag? - ANSWER - 5.55
In a game of chance there are two possible moves, A and B, and each
can lead to either success or failure. The probability of A leading to
success is 10%, and if it succeeds it is worth 18 points. On the other
hand, the probability of B leading to success is 65%, and if it succeeds it
is worth 4 points. Which move should a player make, and why? -
ANSWER - B because the expected value is higher than that of A.
pg. 4
