Curated Video
Connie Wang - features writer at Refinery29 - gives her style analysis of fashion on the Emmy carpet
FASHION HITS AND MISSES AT THE EMMY AWARDS
The stars turned out in their Hollywood best on the red carpet of the 69th prime-time Emmy ceremony in Los Angeles Sunday (17SEPT2017).
Trendy colors this year...
Flipped Math
Sampling Methods
Pupils watch a video to learn about different types of sample design and how to use technology to create a random sample. They discover different types of bias that may happen due to the sampling design or the questions. Learners use...
statisticsfun
How to Calculate Sample Size and Margin of Error
Explore the effect sample size has on margin of error and confidence interval. The instructor calculates the margin of error of fictional data. He shows how the calculation changes when the sample size changes while keeping the other...
statisticsfun
Derive the Sample Size Equation for Population Proportions
There are too many equations to memorize, but a helpful trick will make it easier. When you start with the confidence interval equation, the video walks through how to solve it and create the sample size equation.
statisticsfun
Deriving the Sample Size Equation
Where do all of these equations come from? A statistics video explains how to find the sample size equation based on the formula for the confidence interval.
statisticsfun
Why are Degrees of Freedom (n-1) Used in Variance and Standard Deviation
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.
statisticsfun
Calculate A Sample Size of a Population Proportion
I think we need a new teacher; this one keeps asking us for the answers! The video walks through how to solve for sample size when you are given a z score, proportion, and margin of error. It also explains a graph of the relationship...
statisticsfun
Calculate Sample Size Interval of a Population Mean
When does .2 round up rather than down? The example in a statistics video changes the rules about rounding. The video walks through how to solve for sample size when you are given the error, z score, and standard deviation. It...
statisticsfun
How to Calculate Sample Size Proportions
Have you ever wondered about the proportion of ducks it would take to equal one bear's weight? (It's 423.) The video walks through how to solve for sample size when you already know the confidence, error, and proportion. It also graphs...
statisticsfun
How to Calculate Sample Size
If your sample size is small and your standard deviation is high, your results mean nothing. The video explains how to solve for sample size, assuming you are given the confidence, standard deviation, and error rate.
Texas Education Agency
Texas Gateway: Study Edge: Factors Affecting the Width of a Confidence Interval
This lesson looks at what effects changing the standard deviation, confidence level, and/or sample size have on the width of a confidence interval. Includes downloadable study guide with exercises - guide also covers other topics. [11:26]
Sophia Learning
Sophia: Sampling Error and Sample Size: Lesson 4
This lesson will explain sampling error and sample size. It is 4 of 4 in the series titled "Sampling Error and Sample Size."
Sophia Learning
Sophia: Sampling Error and Sample Size: Lesson 2
This lesson will explain sampling error and sample size. It is 2 of 4 in the series titled "Sampling Error and Sample Size."
Sophia Learning
Sophia: Sampling Error and Sample Size: Lesson 3
This lesson will explain sampling error and sample size. It is 3 of 4 in the series titled "Sampling Error and Sample Size."