Variance Teacher Resources

Continuing his conversation about data sets from the previous video, Sal introduces range, variance, and standard deviation as means of dispersion. Those advancing in algebra or beginning a statistics class will benefit from Sal's clear...

Use variable value sliders to understand variance. The interactive shows four whole numbers, their mean and deviation. Using the information, pupils find the variance of the numbers and respond to question related to the understanding of...

Why is adding variance important? A lesson outline defines a variance theorem and how it affects the data statistics. The instruction shows scholars the importance of considering the variance of data and why it requires independence.

Is baseball really the road to riches? Here, statisticians look at salary data from baseball players and use variance to measure the spread of the data to more accurately answer that question. Note: The salary data provided is from 1994,...

What if math teachers are really pirates and they want us to find x so they can get the buried treasure? A short video explains how to calculate standard deviation and variance with a step-by-step guided practice problem. The...

Wouldn't life be easier if a computer would do the work for us? A video shows how to use Excel to solve for standard deviation, mean, and variance statistics. 

When does 10 + 7 = 13? When you add wrong. The video walks you through solving standard deviation and variance problems by hand, including ways to check your work. 

Students explore the lattice method of mulitplication variances through the game "Multiplication Wrestling." They view a model of how to play the game and play three rounds, recording their patterns and discussing the strategies used to...

For this Statistics worksheet, 11th graders compute the mean, standard deviation and variances for four different problem scenarios.  The one page worksheet contains four scenarios, each with eight questions.  Answers are...

Calculators sure come in handy. An AP® Statistics instructional resource provides suggestions for using calculator simulations. It gives activities for adding variances, normal probability plots, and t distributions.

How do you account for multiple variables when analyzing data? Following a lesson on regression, the 33rd lesson in the Crash Course Statistics series examines the ANOVA, analysis of variances, method of determining differences...

What do classmates think? In groups, learners design surveys to investigate chosen topics. They conduct the survey, then analyze the results. As part of the activity, they must calculate the mean, median, mode, variance, and standard...

Upper elementary and middle schoolers work with the concept of probability. They are introduced to the concept of chaos. Learners graph and analyze using a line plot, work with mean, and are introduced to the concept of variance.

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...

You'll probably end up thinking about randomness the next time you eat fries. The 17th video in the Crash Course Statistics series uses an analysis of McDonald's french fries to look at the mean and expected value of random...

Students open a blank spreadsheet and format it for a class survey about the number of shoes owned by the men and women in the class. They enter the data before finding the mean, median, mode, quartiles, variance, and the standard...

Students review previous lessons on mean, variance, standard deviation, and expected value. They utlize formulas for these characteristics that are specifically designed for the binomial distribution. Students discuss the similarities...

Don't be mean, be above average. A straightforward video explains why degrees of freedom are used and how to recognize the error based on your sample population. 

Use measures of variance to compare and analyze data sets. Pupils match histograms of data sets to their respective statistical measures. They then use calculated statistics to further analyze groups of data and use the results to make...

If you've always wanted to know more about spreadsheets, here's a perfect resource for you. A self-paced tutorial introduces how to autofill and copy formulas in a Google sheet or Excel spreadsheet. It also shows users how to find range,...

Take a look at data from a statistical lens. An interactive allows pupils to enter data set, labeling the data including the units used. Manipulating the applet, learners select the statistics to calculate that include total, mean,...

Pupils identify the mean and variance. In this statistics lesson, students calculate the population variance using the N as a divisor. They draw the relationship of dividing by N and N-1.

In this statistics instructional activity, students determine the mean, variance, standard deviation and median of given statistical data. They organize data, create box-and-whisker plots and identify outliers. This nine-page...