StatTutor Lesson - The Five-number Summary and Boxplots

true
Stat Tutor
true
true
You have completed 0 question sequences out of 8.
The five number summary and boxplots
Video Player is loading.
Current Time 0:00
Duration 0:00
Loaded: 0%
Stream Type LIVE
Remaining Time 0:00
 
1x
    • Chapters
    • descriptions off, selected

      Question 1

      32

      Question 1.

      True or false: the five numbers in the five-number summary are: minimum, 1st quartile, mean, 3rd quartile and maximum

      A.
      B.

      Correct. The median is the middle value of the five-number summary, not the mean.
      Incorrect. The median is the middle value of the five-number summary, not the mean.
      2
      Try again.

      Question 2

      79

      Question 2.

      True or false: If the histogram is symmetric, then the distance between each of the five numbers is the same.

      A.
      B.

      Correct. For symmetric data, the distance between minimum and the first quartile will be about the same as the distance between the third quartile and the maximum. And the distance between the first quartile and the median and the median and the third quartile will be about the same. But all the distances do not have to be the same for symmetric data.
      Incorrect. For symmetric data, the distance between minimum and the first quartile will be about the same as the distance between the third quartile and the maximum. And the distance between the first quartile and the median and the median and the third quartile will be about the same. But all the distances do not have to be the same for symmetric data.
      2
      Try again.

      Question 3

      169

      Question 3.

      True or false: The larger the distance between two adjacent numbers in the five-number summary, the more spread out the data in that interval.

      A.
      B.

      Correct. This is a correct statement.
      Incorrect. This is a correct statement.
      2
      Try again.

      Questions 4-7

      224

      Question 4.

      True or false: A boxplot is a graphical representation of the five-number summary.

      A.
      B.

      Correct. This is a correct statement.
      Incorrect. This is a correct statement.
      2
      Try again.

      Questions 8-9

      447

      Question 8.

      True or false: The long “whisker” on the right side of the boxplot indicates that the GNP’s between the 3rd quartile and the maximum are very spread out.

      A.
      B.

      Correct. This is a correct statement.
      Incorrect. This is a correct statement.
      2
      Try again.

      Questions 10-13

      561

      Question 10.

      True or false: If a histogram is symmetric, then the corresponding boxplot will also be symmetric.

      A.
      B.

      Correct. This is a correct statement.
      Incorrect. This is a correct statement.
      2
      Try again.

      Questions 14-15

      595

      Question 14.

      Which treatment has the highest center for the difference between pre- and post-blood pressures?

      A.
      B.

      Correct. The median is greater for the placebo group than for the calcium group.
      Incorrect. The median is greater for the placebo group than for the calcium group.
      2
      Try again.

      Questions 16-18

      665

      Question 16.

      Which boxplot has the smallest median?

      A.
      B.
      C.
      D.

      Correct. Since the line in the box portion of the boxplot for “sport utility vehicles” is lower than the line in the boxes of the other boxplots, it has the smallest median.
      Incorrect. Since the line in the box portion of the boxplot for “sport utility vehicles” is lower than the line in the boxes of the other boxplots, it has the smallest median.
      2
      Try again.