Quiz about Stats and Probability REVIEW

Question 1

What is the probability of spinning a red if we spin 30 times?

Accepted Answer

1/6

Answer

1/30

Answer

6/30

Answer

1/10

Question 2

If you choose from the following M & M's, what is the probability that you choose blue?
5 green
6 yellow
8 blue
7 brown

Accepted Answer

4/13

Answer

8/26

Answer

8/25

Answer

1/3

Question 3

Theoretically, what is the probability of rolling a sum of one with a pair of dice?

Accepted Answer

0

Answer

1/6

Answer

1/12

Answer

1/36

Question 4

Theoretically, what is the probability of rolling a sum of 10 with a pair of dice?

Accepted Answer

1/12

Answer

1/4

Answer

3/12

Answer

3/36

Question 5

What is the probability of spinning an even number?

Accepted Answer

50%

Answer

16 2/3%

Answer

33 1/3%

Answer

75%

Question 6

What is the probability of spinning a red, then spinning a yellow?

Accepted Answer

1/16

Answer

1/8

Answer

1/2

Answer

1/3

Question 7

What is the probability of selecting an orange candy?

Accepted Answer

100%

Answer

0%

Answer

25%

Answer

50%

Question 8

An unlikely chance event is closer to what number?

Accepted Answer

0

Answer

1

Answer

2

Answer

3

Question 9

Probability of:
Spinning a 5 and
drawing a C

Accepted Answer

0

Answer

1/4

Answer

1/8

Answer

1/16

Question 10

Determine the likelihood of the following event:
Drawing a red card from a standard deck of cards

Accepted Answer

1/2

Answer

13/52

Answer

1/4

Answer

4/52

Question 11

What is the probability of drawing a black ace when drawing a card at random from a deck of 52 playing cards?

Accepted Answer

1/26

Answer

1/50

Answer

2/39

Answer

1/13

Question 12

Theoretical Probability is?

Accepted Answer

What Should happen

Answer

What does happen

Answer

What Will Happen

Answer

What I want to Happen

Question 13

Experimental Probability is:

Accepted Answer

What actually happens

Answer

What Will happen

Answer

What should happen

Answer

What I think Happens

Question 14

P(<span style="color: #f14d76;">not</span> A) =

Accepted Answer

3/4

Answer

6/8

Answer

2/8

Answer

1/4

Question 15

On a 6-sided die, which is more likely?

Accepted Answer

They are both equally likely.

Answer

Rolling an odd number

Answer

Rolling an even number

Question 16

Find the probability of NOT rolling a 2 on a single die.

Accepted Answer

5/6

Answer

1/6

Answer

2/6

Answer

2

Question 17

What is the probability of spinning an even section OR a red section?

Accepted Answer

5/8

Answer

3/8

Answer

7/8

Answer

1/4

Question 18

At  a New Car Dealership a particular model comes in 4 trim levels, 5 different colors, and 3 different interiors. How many different versions of this car model can be created from these options?

Accepted Answer

60

Answer

180

Answer

23

Answer

12

Question 19

A menu has 6 different sandwiches, with 3 choices of potato chips, and 5 different beverages. How many different lunch combinations consisting of a sandwich, chips and beverage can be ordered?

Accepted Answer

90

Answer

30

Answer

17

Answer

270

Question 20

You roll a six sided die. What is the probability of rolling an even number three times in a row?

Accepted Answer

1/8

Answer

3/100

Answer

1/2

Answer

1/6

Question 21

A bag contains 5 blue marbles, 4 red marbles, and 3 orange marbles. Mrs. Drown picks one without looking, replaces it and picks another one. What is the probability that she picks two that are not orange?

Accepted Answer

9/16

Answer

3/4

Answer

9/144

Answer

5/16

Question 22

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10

Accepted Answer

10

Answer

13

Answer

12

Answer

11

Question 23

Which number is not the mean, median, or range of the data set 4, 3, 15, 11, 3, 8, 7, 5?

Accepted Answer

11

Answer

3

Answer

7

Answer

6

Question 24

Greg got these grades in three tests: 72, 80 and 82. He had one more test to take. He wanted an average of 80 for the four tests. What mark must he get in the fourth test?

Accepted Answer

86

Answer

80

Answer

234

Answer

It is not possible for him to get an 80 average

Question 25

Extreme values are also known as what?

Accepted Answer

outliers

Answer

interquartile ranges

Answer

modes

Answer

medians

Question 26

If a number is added to a set that is bigger than the mean. How does this affect the mean?

Accepted Answer

increase

Answer

decrease

Answer

stay the same

Question 27

The Table above shows the points scored by the JV basketball team in their first seven games. Calculate the mean, median, mode and range. Which statistical measure makes the team sound the best?

Accepted Answer

Mean

Answer

Median

Answer

Mode

Answer

Range

Question 28

Which class has the higher test score median?

Accepted Answer

Class #1

Answer

Class # 2

Answer

The medians are equal

Answer

The median is not shown here.

Question 29

Which class was more consistent in their Algebra Scores?

Accepted Answer

Class #1

Answer

Class #2

Answer

Both classes had the same consistency.

Answer

50%

Question 30

The double line plot shows the number of students who attended the home games of the baseball team for two recent seasons.  Which of the following statements is NOT true.

Accepted Answer

The attendance for 2009 had outliers.

Answer

The attendance for 2009 was more varied so the MAD would be larger than the MAD for 2010.

Answer

The attendance for 2010 was more consistent, so the MAD would be smaller than the MAD for 2009.

Answer

The attendance for 2010 ranged from 20-27.

Question 31

Find the Mean Absolute Deviation:
5, 11, 2, 7, 16.

Accepted Answer

4.2

Answer

3.2

Answer

2.8

Answer

1.2

Question 32

What is the IQR?

Accepted Answer

5.5

Answer

4

Answer

4.5

Answer

6

Question 33

What was the highest score on the math test?

Accepted Answer

97

Answer

53

Answer

79

Answer

90

Question 34

Compare the dot plots. Which dot plot has the greater variability?

Accepted Answer

Ms. Sanson's class

Answer

Ms. Kwei's class

Answer

They have equal variability

Question 35

(#15)The table below shows data on the times it takes to load a page of photos at two websites during the past year. Which website has the least variability in load times and why?

Accepted Answer

Website A, because its range is smaller

Answer

Website A, because its interquartile range is larger

Answer

Website B because its interquartile range is smaller

Answer

Website B because its range is larger

Question 36

Dylan asked his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

Accepted Answer

Yes, because it is a convenience survey

Answer

No, the basketball team has the smartest students

Answer

Yes, because it's voluntary survey

Answer

No, he should have asked the football team

Question 37

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?

Accepted Answer

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

Answer

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

Answer

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

Answer

to ask the student council to choose a location

Question 38

Unbiased sampling is:

Accepted Answer

when any member of the population is equally likely to be chosen for the sample

Answer

when you choose the group you think will represent the population

Question 39

Several students were surveyed about their favorite drinks. 22 orange soda, 34 pepsi, 20 coke, and 24 said grape. Predict how many students will like coke if 500 students are surveyed?

Accepted Answer

100

Answer

158

Answer

60

Answer

80

Question 40

A survey of 1,000 people was done by the New York Times. 80% of the people did not know the name of their representative in Congress. How many of the 1,000 people knew the name of the Congressman?

Accepted Answer

200

Answer

400

Answer

600

Answer

800

Question 41

Is it Biased or Unbiased?
What is your favorite sport? Ask: people attending a soccer game

Accepted Answer

Biased, because it is a convenience sample

Answer

Unbiased

Answer

Biased because it is an interval sample

Answer

Biased because you should have asked the step team

Question 42

Sam tested every 50th candy bar from the assembly line to make sure there were enough peanuts in each bar.  He found 15% did not have enough peanuts.  How many candy bars do not have enough peanuts if the factory produces 20,000 candy bars?

Accepted Answer

3,000

Answer

300

Answer

300,000

Answer

50

Stats and Probability REVIEW

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