Questions: Question 3 of 8 (1 point) I Question Attempt 1 of 1 Ms. Peterson gave her students a biology test last week. Here are the test scores for each of the fifteen students. Test scores 81, 93, 91, 83, 90, 81, 95, 80, 86, 97, 92, 85, 92, 82, 92 (a) Complete the grouped frequency distribution for the data. (Note that the class width is 5.)

Question 3 of 8 (1 point) I Question Attempt 1 of 1 Ms. Peterson gave her students a biology test last week. Here are the test scores for each of the fifteen students. Test scores 81, 93, 91, 83, 90, 81, 95, 80, 86, 97, 92, 85, 92, 82, 92 (a) Complete the grouped frequency distribution for the data. (Note that the class width is 5.)
Transcript text: Question 3 of 8 (1 point) I Question Attempt 1 of 1 Ms. Peterson gave her students a biology test last week. Here are the test scores for each of the fifteen students. \begin{tabular}{|lllll|} \hline \multicolumn{5}{c|}{ Test scores } \\ \hline 81 & 93 & 91 & 83 & 90 \\ 81 & 95 & 80 & 86 & 97 \\ 92 & 85 & 92 & 82 & 92 \\ \hline \end{tabular} (a) Complete the grouped frequency distribution for the data. (Note that the class width is 5. ) Continue
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Solution

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Solution Steps

Step 1: Identify the Class Intervals

The class intervals given are:

  • 78.5 - 83.5
  • 83.5 - 88.5
  • 88.5 - 93.5
  • 93.5 - 98.5
Step 2: Tally the Scores in Each Interval

Count the number of test scores that fall into each class interval:

  • 78.5 - 83.5: Scores = 81, 81, 80, 83, 82 (5 scores)
  • 83.5 - 88.5: Scores = 86, 85 (2 scores)
  • 88.5 - 93.5: Scores = 90, 91, 92, 92, 92 (5 scores)
  • 93.5 - 98.5: Scores = 93, 95, 97 (3 scores)
Step 3: Record the Frequencies

Fill in the frequency table with the tallied counts:

  • 78.5 - 83.5: Frequency = 5
  • 83.5 - 88.5: Frequency = 2
  • 88.5 - 93.5: Frequency = 5
  • 93.5 - 98.5: Frequency = 3

Final Answer

| Test scores | Frequency | |-------------|-----------| | 78.5 - 83.5 | 5 | | 83.5 - 88.5 | 2 | | 88.5 - 93.5 | 5 | | 93.5 - 98.5 | 3 |

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