Khan Academy
SAT Prep: Test 3 Section 4 Part 3
Continuing his lessons on the practice SAT, Sal takes students through problems 10-13, which involve absolute value, comparing angles in a geometric diagram, and finding the median number in a set of consecutive integers. Students will...
Khan Academy
SAT Prep: Test 8 Section 2 Part 4
Advising students to become comfortable with the 30-60-90 triangles as an SAT prep skill, Sal finishes this review session with a geometry problem, an algebra problem with fractions, slopes, and median numbers. His tips and test-taking...
Khan Academy
SAT Prep: Test 7 Section 2 Part 1
Sal picks up the pace in this video, going through problems 1-7 on page 774 of The Official SAT Study Guide. Basic algebra, arithmetic, and geometry problems start out this section, allowing students to build up some steam before hitting...
Khan Academy
Finding Mean, Median, and Mode, Descriptive Statistics, Probability and Statistics
This video provides a reasonable explanation for blossoming mathematicians, explaining the difference between average and central tendency, as well as arithmetic mean, median, and mode. Those who haven't grasped these concepts in algebra...
Khan Academy
SAT Prep: Test 6 Section 7 Part 5
On the home stretch of this practice session, Sal completes problems 18 and 19 on page 738 of The Official SAT Study Guide. He begins problem 20, but chooses to finish it in the next video instead of rushing the answer. As always, Sal's...
Khan Academy
SAT Prep: Test 5 Section 3 Part 3
A ten minute time limit prevented Sal from finishing problem 8 in the last video, which he continues in this lesson. Problems 9-11 involve algebraic expressions and word problems.
Khan Academy
SAT Prep: Test 4 Section 2 Part 3
Continuing his theme of solving problems in a timely and correct manner, Sal teaches students that most problems on the SAT are designed to be solved in less than 30 seconds (though he does state that they are given over a minute for...
Flipped Math
Comparing Distributions
Here's a lesson that is beyond compare. Young mathematicians learn to compare data distributions in the fourth of five installments in Algebra 1 Unit 4. They consider the shape of the distributions, identify any outliers, and compare the...
Flipped Math
Boxplots and Interquartile Range
Box in a lesson on box plots. Viewers of an informative video learn how to create box plots, both by hand and by using a graphing calculator. Additionally, they determine the interquartile range and interpret the value in terms of the...
Flipped Math
Data Distributions
The shape of a data distribution can help shape one's understanding of the data. The second of five lessons in Algebra 1 Unit 4 focuses on data distributions. By watching a video, scholars learn about symmetric, bimodal, and skewed...
Flipped Math
Describing Data
No need to nap through the lesson. Given data on the number of naps two teachers take, learners calculate the mean, median, mode, and range, and then interpret their results in terms of the context. They then see how to determine the...
Corbett Maths
Median for a Frequency Table
Try to find the middle of a frequency table. Using a frequency table of ages, the video shows how to use a formula to determine the position of the median. The resource uses frequency tables with both even and odd numbers of data points.
Corbett Maths
Medians and Quartiles from Grouped Frequency Tables and Histograms
Determine medians within a group. Given data represented as a frequency table of grouped data, the video demonstrates finding an estimation for the median. After finding the group where the median resides, the presenter uses a formula to...
Corbett Maths
The Median
Find the one in the middle. An informative resource explains how to determine the median of a set of numbers. Using both even and odd numbers of data points, the video covers the process of finding the middle number. Worksheets provide...
Corbett Maths
Reading Cumulative Frequency Graphs
Creating a cumulative frequency graph is one thing, reading them is another. A thorough video lesson explains how to find key information from a cumulative frequency graph. The instructor demonstrates the best way to read the graph and...
Corbett Maths
Comparing Box Plots
Stacked box plots create an informative visual display. Using a video lesson, scholars compare data from box plots plotted on the same number line. They use both the visual display and the key intervals to make conclusions.
Corbett Maths
Drawing and Reading Box Plots
Box and whiskers have more to do with data than they do with cats! A video lesson describes how to plot, analyze, and compare box plots. Mathematicians first learn to create a box plot and then how to use information about the quartiles...
PBS
Real-Life Math | Estate Appraiser
Real estate is all about location, location, location—and perhaps a little bit of math. A set of two videos has real estate appraisers describe the work that they do. Scholars discuss how mathematics plays a role in these jobs to...
Corbett Maths
Reading Stem and Leaf Diagrams
What are you growing in your math classroom? Scholars use a video lesson to learn how to read a stem and leaf diagram. The video instructor explains how to interpret the key and then explores how to find the range, mode, and median from...
Anywhere Math
Measures of Center
Bring statistics to the front and center. An informative video describes how to find measures of center for numerical data. It covers the mean, the median, and the mode, as well as briefly mentions outliers.
Anywhere Math
Mean Absolute Deviation
I mean it when I say that you'll learn about mean absolute deviation. By watching an informative YouTube video, viewers see how to calculate the mean absolute deviation. The video shows a few examples and explains the interpretation of...
Crash Course
Measures of Spread: Crash Course Statistics #4
Sometimes the measures of center don't give us enough information. The spread of the data can tell statisticians much more about the data set. A video lesson, part of a statistics video series, describes different measures of spread such...
Crash Course
Mean, Median, and Mode: Measures of Central Tendency: Crash Course Statistics #3
If you have two feet, you have more than the average number of feet! Explore the meaning of the numbers of measures of central tendency of different data sets with the third of five lessons in a video statistics playlist. Using unique...
CK-12 Foundation
Medians: Examples
Balance the knowledge of intersecting medians. Using examples, the portion of a geometry playlist introduces the centroid. A video describes the property of the location of the triangle medians' point of concurrency.