Review for Probability and Statistics

Multiple Choice

Determine the mean of the the following set of data 62, 47, 97, 36, 42, 15.

• 49.83

• 52

• 48

• 50.83

Multiple Choice

What is the relative frequency (to the nearest percent) of boys among those who cannot bike to school? 

• 4%
• 14%
• 13%
• 29%

Multiple Choice

What is the relative frequency for selecting a teen given that the person likes chocolate?

• .112
• .267
• .164
• .056

Multiple Choice

A value much greater or much less than the others in a data set.

• Outlier

• Cluster

• Gap

• Frequency

Multiple Choice

The number of times the value appears in a data set.

• Frequency

• Joint Relative Frequency

• Marginal Relative Frequency

• Conditional Relative Frequency

Multiple Choice

A straight line that comes closest to the points on a scatter plot.

• Line of Best Fit

• Trend Line

• Frequency

• Correlation

Multiple Select

The description of the relationship between two data sets.

• Correlation

• Probability

• Association

• Frequency

Multiple Choice

A comparison between two data sets when one set of data values increases while the other decreases.

• Negative Correlation

• Positive Correlation

• No Correlation

• Trend

Multiple Choice

A comparison between two data sets that have no relationship between their data values.

• No Correlation

• Negative Correlation

• Positive Correlation

• Trend

Multiple Choice

A comparison between two data sets when their data values increase together.

• Positive Correlation

• Negative Correlation

• No Correlation

• Trend

Multiple Choice

-describes middle 50% of data

• lower quartile range

• mean absolute deviation

• interquartile range

• deviation from the mean

Multiple Choice

Values that divide a data set into four equal parts.

• Interquartile Range

• Outliers

• First Quartile

• Quartiles

Multiple Choice

the difference between the 1st and 3rd Quartiles

• Lower Quartile

• Interquartile Range (IQR)

• Standard Deviation

• Range

Multiple Choice

The median of the upper half of a data set

• Lower Quartile

• Upper Quartile

• Median

• Maximum

Multiple Choice

The lowest value in a data set

• Minimum

• Maximum

• IQR

• Mode

Multiple Choice

What does point C on the box plot represent?

• First Quartile

• Median

• Third Quartile

• Mean

Multiple Choice

What do points B and D represent on the box plot?

• Mean and Mode

• Mean and Median

• Least and Greatest Value

• First and Third Quartiles

Multiple Choice

What do points A and E represent on the box plot?

• Mean and Mode

• Mean and Median

• Least and Greatest Value

• First and Third Quartiles

Multiple Choice

What is the interquartile range?

• 4

• 6

• 2

• 8

Multiple Choice

What value is the lower quartile?

• 66

• 58

• 60

• 64

Multiple Choice

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Add the two numbers in the middle & then divide by two.

• They are both the median

• None of the above

Multiple Choice

What percent of students have a height between 58 inches and 60 inches?

• 25%

• 50%

• 75%

• 100%

Multiple Choice

What percentage of the data is between 90 and 140?

• 25 %

• 50%

• 75%

• 100%

Multiple Choice

What is the range of heights?

• 24

• 45

• 13

• 26

Multiple Choice

How many more students read fewer

than 25 books than read more than

35 books?

• 6

• 10

• 4

• 14

Multiple Choice

How many baseballs were thrown 50 or more feet?

• 5

• 4

• 13

• 8

Multiple Choice

How many games did the team play?

• 15

• 12

• 24

• 14

Multiple Choice

This plot represent the number of cookies eaten at a county fair. What was the greatest amount of cookies eaten?

• 97

• 100

• 10

• 96

Multiple Choice

For the number 58, 5 is in the _____ column, and 8 is in the ____ column.

• stem, leaf

• leaf, steam

• weight crate

Multiple Choice

The graph above represents the results of a survey regarding the amount of Pokemon cards people own. Which statement could be true based on the data in the graph?

• Some of the people surveyed do not own any Pokemon cards.

• Over ten people own more than 50 Pokemon Cards.

• 11 people surveyed own less than 10 Pokemon cards.

Multiple Choice

• A

• B

• C

• D

Multiple Choice

Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8

• 3

• 5

• 1

• 2

Multiple Choice

Which mean absolute deviation would have a greater variability or spread?  4.2 or 8.5?

• 4.2

• 8.5

Multiple Choice

Which mean absolute deviation would be more consistent? 4.2 or 8.5?

• 4.2

• 8.5

Multiple Choice

True or false? :The larger the Mean Absolute Deviation the more consistent the data is.

• True

• False

Multiple Choice

Which dot plot shows more consistency? a or b?

• a

• b

Multiple Choice

Which dot plot shows more variability? a or b?

• a

• b

Multiple Choice

What are the coordinates of the outlier?

• (6,9)

• (9,6)

• What outlier

Multiple Choice

What is the y intercept for this line of best fit?

• 10

• 5

• B

Multiple Choice

Which could be the slope of the line of best fit?

• $$\frac{1}{6}$$

• 4

• -2

• $$-\frac{1}{3}$$

Multiple Choice

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters

• 15 chapters

• 18 chapters

• 21 chapters

Multiple Choice

If Joe worked 30 hours, how much is he expected to earn?

• $600

• $200

• $1000

• $800

Multiple Choice

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

Multiple Choice

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

• To make it look like you know what you are doing

Multiple Choice

What could be the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y=2x+10

• y= 10

Multiple Choice

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase.

• As the temperature increases, the number of visitors increases.

• As the visitors increase, the temperature decreases.

• No correlation

Multiple Choice

What is the mean of the data? (0's still count as numbers)

• 2

• 32

• 15

• 2.46

Multiple Choice

What is the median of the data?

• 2

• 1

• 3

• 12

Multiple Choice

What is the mode of the data?

• 2

• 1

• 4

• 12

Multiple Choice

How many ladies from age 40-50 visited the library?

• 8

• 6

• 7

• 9

Multiple Choice

How many students spent over 40 minutes but under 60 minutes studying?

• 22 Students

• 30 Students

• 8 Students

• 5 Students

Multiple Choice

Based on the shape of the data distribution, what statement is true about the measure of the center?

• The mean and median are equivalent

• The mean is greater than the median

• The mean is less than the median

• None of these

Multiple Choice

John hoped for an A for his final average in Math. To receive an A he needs to have an average of 95 or higher. Going in to his 6th and final exam, he already had an average of 96. What score does he need to attain on the 6th test to secure an A?

• 95

• 92

• 90

• 100

Multiple Choice

Barb scored 97, 92, 85, and 82 on her first four tests. What score does she need to get on her fifth test so that her final average will be 89?

• 100

• 89

• 97

• 92

Multiple Choice

Over three days the average temperature was 82 degrees. After the fourth day, the average temp for the four days went up to 84 degrees. What was the temperature on the fourth day?

• -14 degrees

• 82 degrees

• 90 degrees

• 84 degrees

Multiple Choice

• 1/4

• 1/8

• 1/2

• 1/6

Multiple Choice

Two marbles are randomly drawn from a bag containing 3 purple, 1 blue, and 1 yellow marble. The first marble is blue and is not replaced. Find the probability of drawing a second marble that is purple. 

• 3/5

• 3/4

• 3/20

• 2/5

Multiple Choice

Flip a coin two times

• Independent

• Dependent

Multiple Choice

Draw a red marble, keep it, then draw a blue marble.

• Independent

• Dependent

Multiple Choice

What is the probability of flipping a coin twice and landing on Tails both times?

• $$\frac{1}{2}$$

• $$\frac{2}{2}$$

• $$\frac{4}{1}$$

• $$\frac{1}{4}$$

Multiple Choice

What is the probability of picking a blue marble, putting it back in the bag, then picking a red marble?

• $$\frac{3}{7}\times\frac{3}{7}$$  

• $$\frac{4}{7}\times\frac{4}{7}$$  

• $$\frac{4}{7}\times\frac{3}{6}$$  

• $$\frac{4}{7}\times\frac{3}{7}$$  

Multiple Choice

A class has 10 girls and 15 boys. If two students are chosen at random, what is the probability that they are both girls?

• $$\frac{10}{25}\times\frac{10}{25}$$

• $$\frac{10}{25}\times\frac{9}{25}$$

• $$\frac{10}{25}\times\frac{9}{24}$$

• $$\frac{9}{25}\times\frac{10}{24}$$

Multiple Choice

What is the probability of picking a green marble, keeping it, then picking another green marble?

• $$\frac{3}{7}\times\frac{3}{7}$$

• $$\frac{3}{7}\times\frac{2}{6}$$

• $$\frac{3}{7}\times\frac{3}{6}$$

• $$\frac{3}{7}\times\frac{7}{3}$$

Multiple Choice

If you spin two times, what is the probability of landing on green both times?

• $$\frac{1}{6}+\frac{1}{6}$$

• $$\frac{1}{6}\times\frac{1}{6}$$

• $$\frac{1}{6}\times\frac{2}{6}$$

• $$\frac{1}{3}\times\frac{1}{3}$$

Multiple Choice

At an assembly, 7 of the first 10 students who entered the gym were carrying a backpack. Based on this, if 700 total students enter the gym, how many students will likely be wearing a backpack?

• 490

• 350

• 600

• 250

Multiple Choice

3 tiles are red, 6 are green, and 3 are blue. If you picked a tile, did not replace it, and then picked another one, what is P (green, not green)?

• $$\frac{3}{11}$$

• $$\frac{12}{12}$$

• $$\frac{1}{12}$$

• $$\frac{6}{24}$$

Multiple Choice

A class has 15 girls and 10 boys. The teacher randomly picks 2 students (one, then another) to go to the office. What are the odds that 2 boys will be chosen?

• $$\frac{3}{20}$$

• $$\frac{4}{25}$$

• $$\frac{6}{25}$$

• $$\frac{9}{25}$$

Multiple Choice

This table shows the sum of rolling 2 dice. What is the probability of getting a 6?

• 5/36

• 6/36

• 5

• 1/36

Multiple Choice

In a deck of 52 playing cards, what is the probability of drawing a club and then a second club?

• 13/52 x 13/52

• 13/52 x 12/51

• 13/52 x 12/52

• 12/52 x 13/51

Multiple Choice

In a deck of 52 playing cards, what is the probability of drawing either a heart or a club than a spade or a diamond if each card is returned to the deck before drawing the next one?

• 26/52 x 25/52

• 26/52 x 26/52

• 26/52 x 26/51

• 26/52 x 25/51

Multiple Choice

If an event is absolutely impossible, what percent probability will it have?

• 0%

• 25%

• 75%

• 100%

Multiple Choice

If an event is absolutely certain, what percent probability will it have?

• 0%

• 25%

• 75%

• 100%

Multiple Choice

If an event is Equally Likely, what percent probability will it have?

• 0%

• 50%

• 75%

• 100%

Multiple Choice

If an event is Likely, what percent probability will it have?

• 0%

• 50%

• 75%

• 100%

Multiple Choice

How many cards are there in a standard deck?

• 4

• 13

• 52

• 60

Multiple Choice

Which of the following in NOT a face card?

• Jack

• Queen

• King

• Ace

Multiple Choice

If you draw one card from a standard deck, what is the probability of drawing a 5 or a diamond?

• 2/52

• 4/52

• 16/52

• 26/52

Multiple Choice

If you draw one card from a standard deck, what is the probability of drawing a spade or a red card?

• 13/52

• 26/52

• 39/52

• Not possible

Multiple Choice

Which of the following shows how to determine P(diamond or face card)?

• 13/52 + 12/52 - 3/52

• 3/52 + 13/52 -12/52

• 3/52 + 12/52 - 13/52

• 1/13 + 3/52 - 1/4

Multiple Choice

The chance that an event will happen. 

• odds

• probability

• outcomes

• tree diagram

Multiple Choice

The probability based on frequency of outcomes during an experiment

•  experimental probability

• fundamental counting principle

• mutually exclusive event

• dependent event

Multiple Choice

The ratio of the number of ways an event can occur to the number of possible outcomes.

• odds

• theoretical probability

•  outcomes

• dependent event

Multiple Choice

Possible results of an event

• outcomes

• compound event

• simple event

• probability

Multiple Choice

A diagram used to show the total number of possible outcomes in a probability event

• mutually exclusive event

• outcomes

• tree diagram

• odds

Multiple Choice

The outcome of one event does not influence the outcome of the other event

• independent event

• tree diagram

• simple event

• odds

Multiple Choice

The outcome of one event does influence the outcome of the other event

• mutually exclusive event

• probability

• dependent event

• simple probability

Multiple Choice

2 or more events that cannot happen at the same time

• odds

• mutually exclusive event

• compound probability

• mutually inclusive event

Multiple Choice

A number from 0 to 1 that measures the likelihood that an event will occur

• outcomes

• event

• probability

• experiment

Multiple Choice

The set of all possible outcomes

• Sample Space

• Event

• Trial

• Probability

Multiple Choice

2 or more events that can happen at the same time

• mutually inclusive   event

• probaility

• compound event

• mutually exclusive evetn

Multiple Choice

Experimental Probability is:

• What Will happen 

• What actually happens

• What should happen

• What I think Happens

Multiple Choice

Find the theoretical probability of NOT landing on yellow if you spin the spinner.

• 1/8

• 7/8

• 1

• 7

Multiple Choice

What is the range of the following data set?

{2, 9, 5, 4, 7, 8}

• 6

• 7

• 5

• 8

Multiple Choice

Over the basketball season each game was a different score.

What is the median of the set?

• 13

• 12.5

• 15.5

• 13.5

Multiple Choice

What does "mean" mean?

• average

• middle

• repeats the most

• variation

Multiple Choice

What does "mode" mean?

• average

• middle

• repeats the most

• variation

Multiple Choice

What is a the meaning for "median"?

• fair share
• middle
• repeats the most
• variation

Fill in the Blanks

Multiple Choice

12,14,11,12,18,15,9, 32
What is the outlier?

• 12

• 9

• 32

• 18

Multiple Choice

What is the probability of selecting a "B" on the first spinner and a "Z" on the second spinner?

• $$\frac{1}{4}$$

• $$\frac{2}{7}$$

• $$\frac{1}{12}$$

• $$\frac{1}{3}$$

Fill in the Blanks

Multiple Choice

At a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?

• to randomly ask 8th grade students who went on a field trip last year

• to randomly choose some 7th grade students to select a location

• to ask all 7th grade teachers and administrators for a location

• to ask the student council to choose a location

Multiple Choice

33, 25, 42, 25, 31, 37, 46, 29, 38

What is the interquartile range of the data?

• 8

• 9

• 13

• 21

Multiple Choice

Find the MAD:

57, 38, 54, 48, 25, 36

• 43

• 20

• 10

• 12

Multiple Select

What is random sampling? (Choose all that apply)

• A sampling method that favors a certain group over another

• A sampling method where each member of the population has an equal chance of being selected

• Sampling method used to avoid bias and other unwanted effects

Multiple Choice

Open the image and select the best answer.

• A

• B

• C

• D

Multiple Choice

Open the image and select the best answer.

• A

• B

• C

• D

Multiple Choice

Open the image and select the best answer.

• A

• B

• C

• D

Multiple Choice

Open the image and select the best answer.

• A

• B

• C

• D

Multiple Choice

Open the image and select the best answer.

• A

• B

• C

• D

Multiple Choice

A bag contains 2 red ping pong balls, 3 green ping pong balls, 3 blue ping pong balls, and 1 yellow ping pong ball. Find the probability of not a red ball.

• 2/3

• 7/9

• 1/3

• 8/9

Multiple Choice

What is the P(A and B) if P(A)=1/2 and P(B)=2/7 where A and B are independent events?

• 1/2

• 2/7

• 1/7

• 4/7

Multiple Choice

What is the P(A or B) if P(A) =32% and P(B) = 17%, where A and B are mutually exclusive events?

• 0.32 or 32%

• 0.17 or 17%

• 0.49 or 49%

• 0.63 or 63%