Question

Ms. Walker gave her students a biology test last week. Here are the test scores for each of the fifteen students. Test scores 81 80 81 95 91 85 92 92 90 82 86 97 93 83 92 (a)Complete the grouped frequency distribution for the data. (Note that the class width is 5.) Test scores Frequency 79 to 83 84 to 88 89 to 93 94 to 98

Answer 1

The completion of the grouped frequency distribution for the test scores of the fifteen students that took the biology test last week is as follows:

Test scores     Frequency

79 to 83                 5

84 to 88                 2

89 to 93                 6

94 to 98                 2

What is a frequency distribution?

A frequency distribution is a pictorial or graphical representation that shows the number of observations of each categorical value (a group of values) that occurs.

By showing the frequency counts for each category, it becomes easier to determine and interpret the presented information based on their relative frequencies.

Frequency charts, tables, or graphs are used to display frequency distributions of data.

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