(c) Which variable has more dispersion? Why? O A. Variable y-the range of variable x is smaller than that of variable y. O B. Variable x-the interquartile range of variable x is larger than that of variable y. Oc. Variable x-the range of variable y is smaller than that of variable x. O D. Variable y-the interquartile range of variable y is larger than that of variable x. O E. Both dispersions are equal. (d) Describe the shape of the variable x. Support your position. Choose the correct answer below. O A. Skewed left-the median is left of center in the box and the left whisker is longer than the right whisker. O B. There is not enough information to determine the shape of the variable x. Oc. Symmetric-the median is the center of the box and the left and right whiskers are about the same length. O D. Skewed right-the median is right of center in the box and the left whisker is shorter than the right whisker. (e) Describe the shape of the variable y. Support your position. Choose the correct answer below. O A. Skewed left-the median is right of center in the box and the left whisker is longer than the right whisker. O B. There is not enough information to determine the shape of the variable y. O C. Skewed right-the median is left of center in the box and the left whisker is shorter than the right whisker. O D. Symmetric-the median is the center of the box and the left and right whiskers are about the same length.

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Chapter1: Starting With Matlab
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C-E

Use the side-by-side boxplots shown to complete parts (a) through (e).
X
30
60
90
120
(a) What is the median of variable x?
The median of variable x is 50. (Round to the nearest integer as needed.)
(b) What is the third quartile of variable y?
The third quartile of variable y is 52. (Round to the nearest integer as needed.)
(c) Which variable has more dispersion? Why?
O A. Variable y-the range of variable x is smaller than that of variable y.
O B. Variable x-the interquartile range of variable x is larger than that of variable y.
Oc. Variable x-the range of variable y is smaller than that of variable x.
O D. Variable y-the interquartile range of variable y is larger than that of variable x.
O E. Both dispersions are equal.
(d) Describe the shape of the variable x. Support your position. Choose the correct answer below.
O A. Skewed left-the median is left of center in the box and the left whisker is longer than the right whisker.
O B. There is not enough information to determine the shape of the variable x.
c. Symmetric-the median is the center of the box and the left and right whiskers are about the same length.
D. Skewed right-the median is right of center in the box and the left whisker is shorter than the right whisker.
(e) Describe the shape of the variable y. Support your position. Choose the correct answer below.
O A. Skewed left-the median is right of center in the box and the left whisker is longer than the right whisker.
O B. There is not enough information to determine the shape of the variable y.
Oc. Skewed right-the median is left of center in the box and the left whisker is shorter than the right whisker.
O D. Symmetric-the median is the center of the box and the left and right whiskers are about the same length.
Transcribed Image Text:Use the side-by-side boxplots shown to complete parts (a) through (e). X 30 60 90 120 (a) What is the median of variable x? The median of variable x is 50. (Round to the nearest integer as needed.) (b) What is the third quartile of variable y? The third quartile of variable y is 52. (Round to the nearest integer as needed.) (c) Which variable has more dispersion? Why? O A. Variable y-the range of variable x is smaller than that of variable y. O B. Variable x-the interquartile range of variable x is larger than that of variable y. Oc. Variable x-the range of variable y is smaller than that of variable x. O D. Variable y-the interquartile range of variable y is larger than that of variable x. O E. Both dispersions are equal. (d) Describe the shape of the variable x. Support your position. Choose the correct answer below. O A. Skewed left-the median is left of center in the box and the left whisker is longer than the right whisker. O B. There is not enough information to determine the shape of the variable x. c. Symmetric-the median is the center of the box and the left and right whiskers are about the same length. D. Skewed right-the median is right of center in the box and the left whisker is shorter than the right whisker. (e) Describe the shape of the variable y. Support your position. Choose the correct answer below. O A. Skewed left-the median is right of center in the box and the left whisker is longer than the right whisker. O B. There is not enough information to determine the shape of the variable y. Oc. Skewed right-the median is left of center in the box and the left whisker is shorter than the right whisker. O D. Symmetric-the median is the center of the box and the left and right whiskers are about the same length.
Expert Solution
Step 1

(c)

From the boxplot, the range of variable y is larger than the range of variable x. This shows that, the spread for distribution of variable y is larger than the spread for distribution of variable x.

Correct answer: Option A. variable y - the range of variable x is smaller than that of variable y.

 

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