Curated OER
How Do You Find the Minimum, Maximum, Quartiles, and Median of a Data Set?
The data sample comes from the number of glasses of water consumed each day by 15 students. You are trying to find minimum, maximum, median, and quartile from this data set. Minimum is the smallest number that occurs, while maximum is...
Curated OER
What is Numerical, or Quantitative, Data?
The teacher gives a very thorough explanation of numerical or quantitative data being anything where the answer to a question would be a number. Whereas any other answer might be considered categorical. She shows several different ways...
Curated OER
What is the Median of a Data Set?
Mean, mode, median? What's the difference? How do you find them? The teacher focuses on explaining median in this video. She gives a good explanation and shows several examples using different sets of numbers.
Curated OER
Mean, Median, and Mode
How many types of average are there? This video describes how to determine the mean, median, and mode of a set of numbers. Each type is worked through using one data set and the instructor shows the procedure for determining each.
Curated OER
Median
What is a median number? How do you find a median number? Two simple explanations are shown on how to find a median number.
Khan Academy
MTEL Math Practice Test: 41-45
Finishing up this practice MTEL Math test, Sal guides the viewer through questions 41-45, explaining his thought processes. The problem set in this video features skills such as median and mean, percentages, and probability, all of which...
Curated OER
What is Numerical, or Quantitative, Data?
The teacher gives a very thorough explanation of numerical or quantitative data being anything where the answer to a question would be a number. Whereas any other answer might be considered categorical. She shows several different ways...
Curated OER
How Do You Find the Minimum, Maximum, Quartiles, and Median of a Data Set?
The data sample comes from the number of glasses of water consumed each day by 15 students. You are trying to find minimum, maximum, median, and quartile from this data set. Minimum is the smallest number that occurs, while maximum is...
Khan Academy
Khan Academy: Proving That the Centroid Is 2 3rds Along the Median
This video tutorial [6:56] shows a proof that the centroid is located two-thrids of the way along each median. Proof is done algebraically.
Khan Academy
Khan Academy: Geometry: Exploring Medial Triangles
This video tutorial [11:32] explains what a medial triangle is and proves that the medial triangle divides the original triangle into four congruent triangles. Proof uses triangle similarity and triangle congruence postulates.
Khan Academy
Khan Academy: Geometry: Triangle Medians and Centroids (2 D Proof)
This video tutorial [15:15] provides a two-dimensional proof that the centroid is located two-thirds the way along every median of a triangle. This is a follow up to the proof in three-dimensions provided in the video, "Triangle Median...
Virtual Nerd
Virtual Nerd: How Do You Find the Median of a Data Set?
The median of a data set is the number that is the middle value of the set. Watch this tutorial to learn how to find the median even if there are two middle values. [3:52]
Texas Education Agency
Texas Gateway: Study Edge Statistics: Measuring Spread of a Distribution
This lesson looks at the different measures of center and variability that are used when analyzing the spread of data in a distribution. Includes downloadable study guide with exercises - guide also covers other topics. [17:21]
Khan Academy
Khan Academy: Geometry: Triangle Medians and Centroids
This video tutorial [8:59] reviews the definitions of median and centroid in relation to a triangle and proves that the centroid is two-thirds the way along a median. The proof is done be drawing a triangle in three-dimensions.
Khan Academy
Khan Academy: Algebra: Average or Central Tendency:arithmetic Mean, Median, Mode
Video explains the different measures of center: arithmetic mean, median, and mode. Gives examples of finding each measure of central tendency and discusses the effect of outliers on each. Includes a link to additional practice problems....
Khan Academy
Khan Academy: Geometry: Median Centroid Right Triangle Example
This video tutorial [9:00]explains how to find various measures of triangles formed by the medians of a right triangle. Based on the properties of the medians of a triangle, properties of centroids, and the Pythagorean theorem.
Khan Academy
Khan Academy: Geometry: Medians Divide Into Smaller Triangles of Equal Area
This video tutorial [7:46] demonstrates that the three medians of a triangle divide it into six smaller triangles with equal areas.
PBS
Pbs Learning Media: Real Life Math: Baseball
Watch and listen as the assistant general manager of a major league baseball team explains how he uses math in this video from KAET, Arizona PBS. A lesson plan and handouts are included. [7:43]
National Science Foundation
National Science Foundation: Science of Nhl Hockey: Statistics & Averages
In order to be the best at their game, an NHL goalie must understand the statistics of their performance, and of their competition, e.g., the goalie save percentage and the goals against average. [5:56]
Khan Academy
Khan Academy: Statistics: Box and Whisker Plots
Video demonstrating the creating of a box-and-whisker plot to analyze data. Includes link to practice problems. [10:05]
Virtual Nerd
Virtual Nerd: What Is the Median of a Data Set?
The median is one of many measures of central tendency. Watch this tutorial to learn what the median is and how to find it. [5:11]
Virtual Nerd
Virtual Nerd: How Do You Find the Median of a Data Set?
The median of a data set is the number that is the middle value of the set. You can find this by putting the numbers in order from least to greatest. Watch this tutorial to see how to find the median of a data set. [3:53]
Math Playground
Math Playground: Can a Set of Data Have More Than One Mode?
This video first defines mean, median and mode. It then answers the question can a set of data have more than one mode.
Khan Academy
Khan Academy: Mean, Median, & Mode Example
The video gives a data set and describes how to find the mean, median, and mode.