PreparED Study Materials
Notes
Videos
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:
full solution
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.
42.1 Web Visits: How It Stacks Up to U.S. Average
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore how hypothesis testing is used to compare a sample mean of Internet visits to the national average. Through calculations and statistical analysis, we determine if a sample of users' web usage significantly deviates from the average U.S. web usage.
Actinomycin D's Impact on RNA Synthesis: An Experimental Insigh
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore a biologist's experiment testing the effects of actinomycin D concentrations on RNA synthesis in cells. By analyzing the outcomes and calculating p-values, this video offers insights into how higher concentrations might inhibit normal RNA synthesis.
Electronic Failures: Deciding Between Minor & Major Defects Cost-Effec
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the intricacies of determining the cause of electronic system failures, either minor or major defects, using statistical distributions. Learn how to minimize the expected cost and make informed decisions based on soundings and loss tables
Committee Selection: Breaking Down Probabilities
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Uncover the mathematical methods used to determine various probabilities when selecting committees. Utilize combination formulas and probabilities to evaluate different teacher-parent combinations.
ACT Score Bet: Who Owes the Pizza? A 7.6% Chance Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the friendly bet between Leona and Fred surrounding their ACT scores and who owes who a pizza. Using statistical principles like Z-scores and the normal distribution, we'll decipher the odds of one outperforming the other by 5 points.