PreparED Study Materials
STAT 2020: Statistics
School: University of Colorado Colorado Springs
Number of Notes and Study Guides Available: 3
Notes
Study Guides
Videos
Estimating Study Hours: A 99% Confidence Method"
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore how a university dean estimates freshmen study hours using statistical methods. Understand the importance of z-scores, confidence levels, and sample sizes in making accurate predictions. Learn how to ensure results are within a desired error margin.
Real Cowboys' Lifespan: Debunking Wild West Myths
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the actual longevity of legendary cowboys using a detailed sociological study. With data visualization and historical references, challenge popular stereotypes and understand the reality of cowboy lives in the late 19th century.
Analyzing Ford F-750 Mileage Using Z-Scores & Probabilities
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore how z-scores help analyze the mileage of Ford Super Duty F-750 trucks. Discover the percentages that reached specific mileage markers and grasp the significance of data using the z-table.
Choosing Samples: The Math of Online Freebies
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the mathematical principles behind choosing free samples in online shopping scenarios. Understand combinations, how to calculate them, and see real-world examples of selecting multiple items.
Let Y be a random variable with mean 11 and variance 9
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Brand X vs. Brand Y: 95% Confidence in Voltage Difference
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Compare the voltages of Brand X and Brand Y batteries using statistical analysis. Learn how to determine a 95% confidence interval for their mean differences. Understand the process from data collection to interpretation of results.