Pre Algebra Part 2 1

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Question Description
Question 1 (5 points)

For each situation, make a tree diagram or table to show the sample space. Then give the total number of outcomes.

picking a number from 1 to 4 and choosing the color red, green, or yellowQuestion 1 options:

6

9

12

24

Question 2 (5 points)

List all of the possible outcomes using the table below.

Skirt

Color

skirt 1

white

skirt 2

black

Question 2 options:

skirt 1, white
skirt 2, black
skirt 2, white
skirt 2, black

skirt 1, white
skirt 1, black
skirt 2, white
skirt 2, black

skirt 1, white
skirt 1, black
skirt 2, white
skirt 2, white

skirt 1, white
skirt 1, black
skirt 1, white
skirt 2, black

Question 3 (5 points)

Find the mode of each set of data.

33, 19, 15, 39, 39, 34, 24, 29Question 3 options:

31

29

32

39

Question 4 (5 points)

Find the interquartile range of the data.

68, 82, 44, 79, 94, 60, 78, 70, 59
Question 4 options:

70

20

50

21

Question 5 (5 points)

Winona’s bowling scores for the past nine weeks are 195, 180, 195, 212, 208, 231, 179, 246, and 195. Find the mean, median, and mode. Round to the nearest tenth, if necessary.

Question 5 options:

204, 195, 195

204.6, 195, 195

204.6, 208, 195

205, 195, no mode

Question 6 (5 points)

The frequency table shows Sam’s record in swimming.

Year

Number of medals

2008

6

2009

4

2010

1

2012

7

2013

4

Based on this record, what is the probability of picking up a medal won by him in the years 2009 or 2012.

Question 6 options:

2

Question 7 (5 points)

The table shows the price of admission at eight theaters.

Theater Admission Prices ($)

5.00

7.50

8.25

8.00

9.75

10.25

11.00

10.75

Find the mean absolute deviation of admission prices. Round to the nearest hundredth if necessary.

Question 7 options:

$13.00

$8.81

$6.00

$1.63

Question 8 (5 points)

Identify the sample as biased or unbiased and describe its type.

John wanted to know about the popularity of a particular movie. He surveyed 20% of the people in 5 different theaters.Question 8 options:

biased, voluntary response sample

biased, convenience sample

unbiased, simple random sample

unbiased, systematic random sample

Question 9 (5 points)

The table shows the high temperatures for two different cities over the past 10 days.

High Temperatures (°F)

Lewistown

64

65

65

66

68

69

70

71

73

74

Hamersville

55

63

65

67

67

68

68

68

70

71

Compare the ranges in temperature for the cities.Question 9 options:

The range for Lewistown is 6 more than the range for Hamersville.

The range for Lewistown is 3 more than the range for Hamersville.

The range for Hamersville is 5 more than the range for Lewistown.

The range for Hamersville is 6 more than the range for Lewistown.

Question 10 (5 points)

Nina’s quiz scores for the quarter are 90, 79, 5, 84, 95, 81, 87, and 94. Which measure of central tendency best represents the data shown in the table and why?

Question 10 options:

Since the data have many repeated values, the mode best represents the data.

Since there is an extreme value (5) and there are no big gaps in the middle of the data, the median best represents the data.

Since there are no extreme values, the mean best represents the data.

Since there are no extreme values and few repeated numbers, the median best represents the data.

Question 11 (5 points)

Lionel is apartment hunting. He makes a table of prospective apartment choices.

Apartment Rental PricesApartment ChoicePrice per Month ($)1630275536754765569066807675

Which measure of central tendency best represents the data shown in the table and why?

Question 11 options:

Since the data is grouped close together, the mode best represents the data.

Since there are no extreme values, the median best represents the data.

Since there are no extreme values and few repeated numbers, the mean best represents the data.

Since the value 675 occurs more than once, the mode best represents the data.

Question 12 (5 points)

How Often We Check Email

According to the graph, out of 2500 people, how many would you expect check email daily?Question 12 options:

575 people

1900 people

190 people

25 people

Question 13 (5 points)

Identify the sample as biased or unbiased and describe its type.

To determine whether students would choose engineering as their profession, equal number of boys and girls were surveyed in a school.Question 13 options:

unbiased, stratified random sample

unbiased, systematic random sample

biased, convenience sample

biased, voluntary response sample

Question 14 (5 points)

The table shows the number of points scored by each team in a tournament.

Number of Points Scored

12

25

16

20

31

16

19

22

Find the mean absolute deviation of the number of points scored. Round to the nearest hundredth if necessary.

Question 14 options:

4.41

16

20.13

35.26

Question 15 (5 points)

Find the probability.

A bag of sweets contains 20 gummy bears and 35 orange slices. One sweet is taken at random from the bag. Find P(gummy bear).Question 15 options:

Question 16 (5 points)

Find the range for the set of data.

101, 72, 115, 114, 117, 56, 101, 68, 111, 58, 51, 51, 90Question 16 options:

64

85

66

90

Question 17 (5 points)

Find the probability.

A marble is randomly selected from a bag containing 15 black, 12 white, and 6 clear marbles. Find P(not clear). Round to the nearest percent if necessary.
Question 17 options:

18%

82%

64%

55%

Question 18 (5 points)

Find the median, first quartile, third quartile, interquartile range, and any outliers for each set of data.

111, 68, 93, 88, 74, 152, 119, 87, 88, 105, 84, 102, 151, 115, 112Question 18 options:

median: 102, Q1: 87, Q3: 113, IR: 28, outliers: none

median: 102, Q1: 87, Q3: 115, IR: 28, outliers: 68

median: 102, Q1: 87, Q2: 115, IR: 28, outliers: none

median: 102, Q1: 87, Q3: 115, IR: 27, outliers: none

Question 19 (5 points)

For the following exercises, use the chart below. It shows the percent of consumers who prefer each brand of paper towel.

Paper Towel

Number of Responses

Thirsty

49

Clean

24

Strong Ones

15

PowerWash

12

Predict how many consumers prefer PowerWash paper towels from a group of 195?Question 19 options:

23 consumers

24 consumers

29 consumers

30 consumers

Question 20 (5 points)

Find the median, first quartile, third quartile, interquartile range, and any outliers for each set of data.

14.6, 28.1, 3.9, 7.1, 5.3, 30.9, 2.8, 6.5, 20.8, 16.4, 16.4, 27.1, 53.5, 12.5, 6.1Question 20 options:

median: 14.6, Q1: 6.1, Q3: 27.1, IR: 21, outliers: none

median: 14.6, Q1: 6.1, Q3: 27.1, IR: 20, outliers: none

median: 14.6, Q1: 6.1, Q3: 27.1, IR: 21, outliers: 2.8

median: 14.6, Q1: 6.1, Q3: 25.1, IR: 21, outliers: none

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