Question

Janet received the following grades in an accounting class at McClenan Community College: 65, 80, 70, 100, 75, and 90. The instructor said he would drop the lowest grade. After the lowest grade is dropped, what's Janet's average? A. 84 B. 82 C. 83 D. 81

Answer 1

70+75+80+90+100=415
415/5=83
After the lowest grade is dropped, Janet's average would be an 83%

Answer 2

Janet's average after the lowest grade is dropped will be 83

What is mean?

• The mean (arithmetic mean) of a dataset is the sum of all values divided by the total number of values.
• It's the most commonly used measure of central tendency and is often referred to as the “average.”
• In mathematics and statistics, the mean refers to the average of a set of values.

How to solve this problem?

The steps are as follow:

• In the given problem the instructor will drop lowest grade which is 65 from given set of data
• Now after removing 65 we will find mean of given data which will as follow:

Mean = (80+70+100+75+90)/5

Mean = 415/5

Mean = 83 marks

So Janet's average after the lowest grade is dropped will be 83

Learn more about mean here:

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