which of the following data displays would be more useful in comparing student scores on the semester a and b math tests

A. histogram
B. Double bar graph
C. dot plot
D. Box and whisker plot

1:B,Dot plot

2:A, Line plot
3:D,How many presidents were at least 50-years old but less then 60- years old at their inauguration.
4:B, What is the highest pH from the sample gathered over the year?
5:B,Bar Graph

I got a 80% and showing the right answers.

To determine which data display would be more useful in comparing student scores on the semester A and B math tests, we need to consider their characteristics and how they can effectively show the distribution of scores.

A. Histogram: A histogram is a graphical representation of a data distribution, showing the frequency of scores within specific intervals or bins. It can give us a visual understanding of the shape and spread of the scores. However, when comparing scores between two groups, histograms may not be the most suitable option as it is challenging to compare two distributions directly.

B. Double bar graph: A double bar graph is a chart that compares two sets of data side by side using rectangular bars. It can provide a straightforward visual representation of the scores and allow for easy comparisons between the two semesters. This option seems appropriate for comparing student scores on the math tests.

C. Dot plot: A dot plot, also called a dot chart or dot diagram, displays individual data points along a number line. It represents the frequency of scores by stacking dots above each value. While dot plots can be useful for displaying the distribution of scores, they may not be as effective in comparing two groups directly, such as semester A and B math test scores.

D. Box and whisker plot: A box and whisker plot, or box plot, is a graphical summary of a data set showing the minimum, first quartile, median, third quartile, and maximum values. It provides a clear representation of the distribution and allows comparisons between two or more data sets. Therefore, a box and whisker plot would be a suitable option for comparing student scores between the two math tests.

In this case, option B, the double bar graph, would likely be the most useful data display for comparing student scores on the semester A and B math tests, as it allows for easy visual comparison and analysis.