PreparED Study Materials
Notes
Videos
Decoding Probabilities: Unions, Intersections, and Complements
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the intricacies of calculating probabilities using set theory concepts such as union and intersection. With step-by-step computations, understand how to find the likelihood of events A and B occurring or not occurring together. Witness the application of classic probabilistic formulas.
Two-Sample T-Test: Analyzing Control vs. Supplemented Groups
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the steps to conduct a two-sample t-test using a control and supplemented group. Through hypothesis testing, standard deviation, and P-value interpretation, we analyze the means of both groups to determine statistical differences.
Unpacking Bias in Surveys: Analyzing Parade's Cell Phone Ban Poll
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Examine the potential biases in a Parade Magazine survey about banning cell phone use while driving, focusing on the implications of voluntary response sampling.
Comparing Stock Returns & Volatility: T-test and F-test Insights
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Compare the mean returns and volatilities of two stocks using t-test and F-test methods. Through the application of hypothesis testing and P-value calculations, we determine which stock provides higher returns and which is riskier.
Battery Lifetimes: Mean, Variance & Standard Deviation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the nuances of analyzing battery lifetime data through mean, variance, and standard deviation computations. Using class boundaries, midpoints, and frequencies, gain insights into the dispersion of battery lifespans and the average deviation from the mean.
Sullivan's Algebra Scores: Frequency to Probabilities Analysis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore Sullivan’s College Algebra homework score analysis, from frequency distribution construction to in-depth statistical calculations such as standard deviation. Discover histogram visualizations, mean and median interpretations, and probability estimations for various score thresholds. Utilize Excel functions for precise calculations.