Quiz about Prob & Stats CP Benchmark Test

Question 1

What shape is a normal distribution curve?

Accepted Answer

Bell curve

Answer

Half curve

Answer

Round curve

Answer

Square curve

Question 2

What is a value called when it is much greater or lesser than most of the other values in the data set?

Accepted Answer

Outlier

Answer

Cluster

Answer

Gap

Answer

Point

Question 3

What is a set of closely grouped data on a scatter plot?

Accepted Answer

Cluster

Answer

Gap

Answer

Group

Answer

None of the above

Question 4

What type of graph shows the relationship between two variables in a data set?

Accepted Answer

Scatter plot

Answer

Graph

Answer

Bar Graph

Answer

Line Graph

Question 5

What kind of data display shows bivariate data with rows and columns?

Accepted Answer

Two-way table

Answer

Scatter Plot

Answer

Bar Graph

Answer

Pie Chart

Question 6

When the data points on a scatter plot appear to cluster around a line, what is being shown?

Accepted Answer

Linear association

Answer

Nonlinear association

Answer

a cluster

Answer

No association

Question 7

When the data points do not cluster around a line, but do cluster to form another shape, the data has a...

Accepted Answer

Nonlinear assocation

Answer

Linear association

Answer

A line

Answer

No association

Question 8

What is NOT another word for association?

Accepted Answer

Difference

Answer

Relationship

Answer

Correlation

Question 9

When the line on a scatter plot has a negative slope, the data has a...

Accepted Answer

Negative association

Answer

Positive association

Answer

No association

Question 10

When the line on a scatter plot has a positive slope, the data has a...

Accepted Answer

Positive association

Answer

Negative association

Answer

No association

Question 11

When a scatter plot has a trend that is linear, you can estimate the equation for the...

Accepted Answer

Line of best fit

Answer

Slope

Answer

y-intercept

Answer

None of the above

Question 12

For a two-way table, what is another word for a variable that is not numerical?

Accepted Answer

Categorical Variables

Answer

Numerical Variables

Answer

Neither

Question 13

Bivariate data involves...

Accepted Answer

Two variables

Answer

Three variables

Answer

One variables

Answer

Four variables

Question 14

A two-way tables is organized by...

Accepted Answer

Two categorical variables

Answer

Three categorical variables

Answer

Four categorical variables

Answer

None of the above

Question 15

In a two-way table, what is the ratio of the number of times an event occurs to the total number of events?

Accepted Answer

Relative Frequency

Answer

Slope

Answer

Division

Answer

None of the above

Question 16

How can the relative frequency of a two-way table be represented?

Accepted Answer

Fraction, decimal, and percent

Answer

Fraction and decimal

Answer

Decimal and percent

Question 17

You flip a nickel three times.
Find the probability that all flips will land on tails.

Accepted Answer

1/8

Answer

1/2

Answer

1/4

Answer

1/6

Question 18

If the odds of being born on each day of the week is equal, what is the probability of two separate babies both being born on a school day? (Monday through Friday)

Accepted Answer

25/49

Answer

5/7

Answer

5/14

Answer

1/49

Question 19

You spin this spinner 3 times.
Find the probability of these 3 events.
P(red, odd, 3)

Accepted Answer

1/72

Answer

1/216

Answer

1/36

Answer

1/12

Question 20

A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?

Accepted Answer

5/21

Answer

1/9

Answer

2/9

Answer

10/21

Question 21

A store sells shirts that are either small, medium, or large. The colors are either red, blue, green, or white. What is the probability someone will select a large green shirt?

Accepted Answer

1/12

Answer

1/3

Answer

1/7

Answer

1/9

Question 22

40% of students in a school wore blue on a Spirit Day. If two students are randomly selected, what is most likely the probability that both students will not be wearing blue?

Accepted Answer

36%

Answer

16%

Answer

40%

Answer

60%

Question 23

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

Accepted Answer

3/5

Answer

9/100

Answer

1/10

Answer

2/5

Question 24

You roll two die.
What is the probability you will roll a 4, then roll a number less than 3?

Accepted Answer

1/18

Answer

1/36

Answer

1/9

Answer

1/6

Question 25

Which event is not a dependent event?

Accepted Answer

Picking an earring, replacing it, then picking a 2nd earring

Answer

Picking 2 students to each be line leader and door holder from a group of 20 students

Answer

Picking 2 marbles from a bag without replacing the first marble

Answer

Picking 2 crayons from a box at the same time (simultaneously)

Question 26

In a drawer, there are 6 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace it, then pick out a 2nd sock. What is the probability that you will pick a brown, then black sock?

Accepted Answer

1/18

Answer

1/11

Answer

1/36

Answer

2/33

Question 27

What is the Mode?
22,7,22,1,7,18,18,16,6,6,7

Accepted Answer

7

Answer

18

Answer

21

Answer

6

Question 28

What is the Median?
8,13,2,4,48

Accepted Answer

8

Answer

48

Answer

2

Answer

9

Question 29

What is the Mean?
9, 5, 7

Accepted Answer

7

Answer

8

Answer

11

Answer

6

Question 30

What is the Median?
34,98,12,45,61

Accepted Answer

45

Answer

98

Answer

12

Answer

34

Question 31

What is the mode?

Accepted Answer

# occurring the most

Answer

the average

Answer

biggest - smallest

Answer

the middle #

Question 32

In order to find the median, the data must be sorted from least to greatest first.

Accepted Answer

True

Answer

False

Question 33

Find the mean of these numbers:
5,11,2,12,4,2

Accepted Answer

6

Answer

4.1

Answer

4.5

Answer

4

Question 34

what is the outlier

Accepted Answer

the data value that is higher than or lower than data values in the set

Answer

the lier of the group

Answer

the outter edge

Answer

the otter of the group

Question 35

33, 25, 42, 25, 31, 37, 46, 29, 38
What is the third quartile of the data?

Accepted Answer

40

Answer

37

Answer

38

Answer

46

Question 36

What percentage of the data is between 40 and 90?

Accepted Answer

25 %

Answer

50%

Answer

75%

Answer

100%

Question 37

What percentage of the data is between 40 and 150?

Accepted Answer

100%

Answer

25 %

Answer

50%

Answer

75%

Question 38

Can there be more than one outlier?

Accepted Answer

Yes

Answer

no

Question 39

What is the outlier in the following data set?  100,98,88,92,150,105, 85,115

Accepted Answer

150

Answer

115

Answer

88

Question 40

The mean life of a tire is 30,000 km. The standard deviation is 2000 km.

Then, 68% of all tires will have a life between ___________ km and __________ km.

Accepted Answer

28,000 km and 32,000 km.

Answer

24,000 km and 34,000 km.

Answer

26,000 km and 34,000 km.

Answer

27,000 km and 31,000 km.

Question 41

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last between 12 and 15 days?

Accepted Answer

34%

Answer

68%

Answer

16%

Answer

2.5%

Question 42

The Floppy Disk Company makes 3.5 inch floppy disks for disk drives that are 3.7 inches wide. The size of a manufactures disk is normally distributed with a standard deviation of 0.1 inches. The company manufactures 1000 disks every hour.

In one hour, how many disks would you expect to be between 3.4 inches and 3.7 inches?

Accepted Answer

819 disks

Answer

23 disks

Answer

500 disks

Answer

0 disks

Question 43

A fifth grader takes a standardized achievement test (mean = 125, standard deviation = 15) and scores a 148.  What is the fifth graders standardized score?

Accepted Answer

1.53

Answer

2.2

Answer

2.75

Answer

139.67

Question 44

If the shaded area under the curve is .85, what is the other missing portion of the curve?

Accepted Answer

.15

Answer

.26

Answer

.30

Answer

.17

Prob & Stats CP Benchmark Test

44 questions

What shape is a normal distribution curve?

What is a value called when it is much greater or lesser than most of the other values in the data set?

What is a set of closely grouped data on a scatter plot?

What type of graph shows the relationship between two variables in a data set?

What kind of data display shows bivariate data with rows and columns?

When the data points on a scatter plot appear to cluster around a line, what is being shown?

When the data points do not cluster around a line, but do cluster to form another shape, the data has a...

What is NOT another word for association?

When the line on a scatter plot has a negative slope, the data has a...

When the line on a scatter plot has a positive slope, the data has a...

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