Determine which types of display could be used to illustrate the given data.
4)
The midterm test scores for the seventh-period typing class are listed below.
85 77 93 91 74 65 68 97 88 59 74 83 85 72 63 79
Which of the following types of display could be used to illustrate this data?
I Histograph
II Stem-and-Leaf Plot
III Bar Graph
IV Circle Graph
A)
I, II
B)
II
C)
II, III
D)
I, IV
Reading this article will help you decide. Two methods are possible
http://www.purplemath.com/modules/stemleaf.htm
Both suitable methods are discussed there.
To determine which types of display could be used to illustrate the given data, let's examine the characteristics of each option:
I) Histogram: A histogram is a graphical representation of data that uses bars to represent the frequency or count of data within specified intervals. It is suitable for illustrating the distribution of data.
II) Stem-and-Leaf Plot: A stem-and-leaf plot is a way to organize and display a set of data values. It shows the individual data points and their distribution. It is suitable for displaying small to moderate-sized data sets.
III) Bar Graph: A bar graph uses rectangular bars of different heights to represent data. Each bar represents a category, and the height represents the frequency or count of that category. It is suitable for comparing different categories and their corresponding values.
IV) Circle Graph: A circle graph, also known as a pie chart, displays data as a circle divided into sectors. Each sector represents a portion of the whole, and the size of the sector represents the proportion or percentage of that portion. It is suitable for showing proportions or percentages of a whole.
Now, let's consider the given data: the midterm test scores for the seventh-period typing class. This data consists of a set of numerical values.
Out of the given options, the most appropriate types of displays for this data would be:
II) Stem-and-Leaf Plot: Because the data set is relatively small and consists of individual numerical values, a stem-and-leaf plot can accurately represent and display the distribution of these scores.
III) Bar Graph: A bar graph can be used to illustrate the frequency or count of scores falling within certain ranges or intervals. By dividing the score ranges into categories, the bar graph can display the distribution of scores effectively.
Therefore, the correct answer is:
C) II, III