Home > MC1 > Chapter 3 > Lesson 3.4.2 > Problem3-110

3-110.

Mr. Nguyen graded a set of tests for his math class. Here are the results in order from lowest to highest:
$50, 55, 57, 60, 62, 65, 78, 80, 82, 85, 88, 89, 90, 91, 93, 95, 95, 96, 98, 99$

1. Create a stem-and-leaf plot for his class grades.

To review stem-and-leaf plots, refer to the Math Notes box in Lesson 1.3.1.

2. Find the mean for his class.

See the Math Notes box in Lesson 1.3.3.

3. Find the median score for his class. How many students scored above this score? How many scored below it?

The median score in Mr. Nguyen is $86.5$.
Can you find how many scores are above and below the median?