Unit 1 Test Review (Part 1)

Question #1:

Which of the dot plots shows a symmetric distribution?

• A

• B

• C

• D

Question #2:

Which of the dot plots shows a skewed right distribution?

• A

• B

• C

• D

• E

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.2

CCSS.6.SP.B.4

Question #3a:

The data set represents the number of errors on a typing test.

5, 6, 8, 8, 9, 9, 10, 10, 10, 12

What is the median? Interpret this value in the situation.

• 9 ; The average number of errors is 9.

• 8.7 ; Half of the test had 8.7 errors or less.

• 8.7 ; The average number of errors is 8.7.

• 9 ; Half of the test had 9 errors or more

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.2

CCSS.6.SP.A.3

Question #3b:

The data set represents the number of errors on a typing test.

5, 6, 8, 8, 9, 9, 10, 10, 10, 12

What is the IQR?

• 8

• 2

• 10

• 7

Question #4:

The data set represents the heights, in centimeters, of ten model bridges made for an engineering competition. What is the mean?

13, 14, 14, 16, 16, 16, 16, 18, 18, 19

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.3

Question #5:

Describe the shape of the distribution shown in the dot plot. The dot plot displays the golf scores from a golf tournament.

• skewed left

• bimodal

• symmetric

• bell-shaped

• skewed right

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.2

CCSS.6.SP.B.4

Question #6:

The dot plot shows the weight, in grams, of several different rocks. Select all the terms that describe the shape of the distribution.

• bell-shaped

• bimodal

• skewed

• symmetric

• uniform

Question #7:

Researchers were interested in the air quality in regions of the United States. The dot plot represents the number of days in a certain month that the air quality was unhealthy for nineteen cities in the Southwest. Which of the following best describes the distribution of these data?

• The distribution is approximately symmetric and centered around

  6 days.

• The distribution is skewed right and centered around 6 days.

• The distribution is skewed right and centered around 3 days.

• The distribution is skewed left and centered around 3 days.

Question #8a:

The data represent the number of ounces of water that 26 students drank before donating blood:

[8, 8, 8, 16, 16, 16, 32, 32, 32, 32, 32, 32, 64, 64, 64, 64, 64, 64, 64, 80, 80, 80, 80, 88, 88, 88].

What numbers are a part of the 5 number summary?

Draw a the picture of the box plot on your paper.

• 64

• 32

• 9

• 65

• 88

Question #8b:

What information about the data is provided by the box plot that is not provided by the dot plot?

• Mean

• Median

• Max

• IQR

• All Data