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Ms. Long created the histogram below to display the grades that were made on a test.
How many students tested?
A histogram of number ot tests by grade points out of 100. The 30 to 40 bar has 1 test. The 40 to 50 bar has 1 test. The 50 to 60 bar has 5 tests. The 60 to 70 bar has 6 tests. The 70 to 80 bar has 8 tests. The 80 to 90 bar has 9 tests. The 90 to 100 bar has 11 tests.
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20 students
28 students
41 students
45 students
1 answer
To find the total number of students who tested, you need to add the number of tests represented in each bar of the histogram:
Now, we can sum those numbers:
1 + 1 + 5 + 6 + 8 + 9 + 11 = 41
Therefore, the total number of students who tested is 41 students.
