Question

The following data set represents the scores (out of 100 points) for students in Mr.Long's biology class on the first test.94 78 79 97 95 848082 94 92 88 88 9972What test score is the mode for the class?

Answer 1

Hello there. To solve this question, we have to remember some properties about statistics and central valued measures.

We want to determine the mode of the test scores from Mr. Long's biology class.

For this, we start by putting the values in the following table:

In the left column, we input the test score and then on the right column, its frequency, that is, how many times does it show up.

Filling the table, we get

As we can notice, there are two values with frequency equals 2, while all the other values have frequency equal to 1.

The mode of a set of values is (are) the value(s) with the highest frequency, therefore if there is two values with the same frequency and it is the highest, we say it has more than one mode.

In this case, the modes are

`88,\,94`

This is the answer to this question.