Question

Your math teacher allows you to choose the most favorable measure of central tendency of your test scores to determine your grade for the term. On six tests you earn scores of 89, 81, 85, 82, 89, and 89. What is your grade to the nearest whole number, and which measure of central tendency should you choose?

Answer 1

The three measures of central tendency are mean, median, and mode

Mean: take the sum of the grades, divide by how many grades there are

Median: list the grades from least to greatest and pick the grade in the middle

Mode: take the grade that occurs most often

Determine these three measures, then pick which one is the highest to be your grade