AnswersStatistical ReasoningBoxplots and Outliers

Boxplots and Outliers — Quiz Answers

10 verified answers2 views
1
Free Preview

Which of the following is the five-number summary for the distribution of arm spans?

A
143, 165, 175, 185, 200
B
140, 160, 170, 180, 210
C
143, 162, 168, 180, 202
D
145, 158, 168, 182, 202
2
Free Preview

The five-number summary of a data set is given. Minimum: 3 cap q sub 1 : 12 Median: 15 cap q sub 3 : 16 Maximum: 20 Which of the following is the IQR for this distribution?

A
1
B
5
C
3
D
4
3

The five-number summary for the lengths of songs, in minutes, performed by a popular music group is given. Minimum: 1 point 8 cap q sub 1 : 3 point 3 Median: 3 point 8 cap q sub 3 : 4 point 5 Maximum: 9 point 2 The shortest song performed by the group is 1 point 8 minutes while the longest three songs are 5 point 7 , 7 point 5 , and 9 point 2 minutes. Are any of these song lengths outliers?

A
Yes, 7 point 5 and 9 point 2 are outliers.
B
Yes, 1 point 8 and 9 point 2 are outliers.
C
Yes, 5 point 7 , 7 point 5 , and 9 point 2 are outliers.
D
No, none of the lengths are outliers.
4

The five-number summary of a data set is given. Minimum: 3 cap q sub 1 : 12 Median: 15 cap q sub 3 : 16 Maximum: 20 Which of the following equals 1 point 5 times IQR ?

A
9
B
1 point 5
C
4 point 5
D
6
5

Thirteen students in a statistics class were asked how many siblings they have. Their responses are listed. 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 5, 5, 6 Which of the following boxplots correctly displays the data?

A
Image with description A boxplot. A number line labeled number of siblings goes from 0 to 6. The whiskers range from 0 to 6, and the box ranges from 2.5 to 5. A line divides the box at 3.
B
Image with description A boxplot. A number line labeled number of siblings goes from 0 to 6. The whiskers range from 1 to 6, and the box ranges from 2.5 to 4. A line divides the box at 3.
C
Image with description A boxplot. A number line labeled number of siblings goes from 0 to 6. A point is at 0. The whiskers range from 1 to 6, and the box ranges from 2.5 to 4. A line divides the box at 3.
D
Image with description A boxplot. A number line labeled number of siblings goes from 0 to 6. A point is at 6. The whiskers range from 0 to 5, and the box ranges from 2.5 to 4. A line divides the box at 3.
6

Which of the following is used to identify outliers in a set of data?

A
1 point 5 times range
B
2 times mean
C
1 point 5 times IQR
D
2 times median
7

Identify the outliers, if they exist.

A
153
B
202
C
192, 202
D
There are no outliers.
8

Identify the outliers, if they exist.

A
12, 14, 15
B
12, 14, 30
C
12, 14, 15, 16
D
There are no outliers.
9

Which of the boxplots correctly displays the data?

A
Image with description A boxplot. A number line labeled 100 meter times (seconds) goes from 22 to 30. The whiskers range fro 22 to 30, and the box ranges from 24 to 28. A line divides the box at 27.
B
Image with description A boxplot. A number line labeled 100 meter times (seconds) goes from 22 to 30. The whiskers range from 22 to 29, and the box ranges from 24 to 28. A line divides the box at 26.
C
Image with description A boxplot. A number line labeled 100 meter times (seconds) goes from 22 to 30. The whiskers range from 22 to 30, and the box ranges from 24.5 to 28. A line divides the box at 26.
D
Image with description A boxplot. A number line labeled 100 meter times (seconds) goes from 22 to 30. The whiskers range from 23 to 29, and the box ranges 24 to 28. A line divides the box at 26.
10

Which of the following is not a true statement?

A
The range of the distribution is around 60 cm.
B
There are no outliers in this distribution.
C
The center of the distribution is around 180 cm.
D
The shape of the boxplot is fairly symmetric.

Did you find these answers helpful?

More from this Course

Quiz
10 verified answers

Quiz

Quiz
10 verified answers

Quiz

Quiz
10 verified answers

Quiz

Boxplots and Outliers — Quiz Answers…