Mean, Median, and Mode
| Site: | Saylor Academy |
| Course: | GKT101: General Knowledge for Teachers – Math |
| Book: | Mean, Median, and Mode |
| Printed by: | Guest user |
| Date: | Saturday, May 18, 2024, 8:20 AM |
Description
As the name suggests, measures of central tendency describe the center, or the middle point, of the data. The most common measure of central tendency is average, or arithmetic mean. Other measures include median and mode. Watch this lecture series and complete the interactive exercises.
Statistics intro: Mean, median, & mode
Source: Khan Academy, https://www.khanacademy.org/math/ap-statistics/summarizing-quantitative-data-ap/measuring-center-quantitative/v/statistics-intro-mean-median-and-mode?modal=1
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License.
Median in a histogram
Practice
Calculating mean and median from data displays - Questions
The 13 members of a running club recorded the total distance they each ran in a week. Here are their distances:
Which interval contains the median distance?
Choose 1 answer:
(A) 0-5
(B) 5-10
(C) 10-15
(D) 15-20
2. Mr. Sirac was looking at how many students are in each of his classes.
Find the mean number of students.
_____ students
3. Ms. Gomez was looking at how many students are in each of her classes.
Find the median number of students.
_____ students
4. A manager recorded how many hours each of 11 cashiers worked in a week. Here's a histogram showing their data:
Which interval contains the median number of hours worked?
Choose 1 answer:
(A) 
(B) 
(C) 
(D) 
(E) 
Calculating mean and median from data displays - Answers
1. The interval for 10-15 kilometers contains the median.
2. The mean is 24 students.
3. The median is 25 students.
4. The interval for 30-40 hours contains the median.