All of Problem Solving and Data Analysis on the SAT скачать в хорошем качестве

All of Problem Solving and Data Analysis on the SAT

Join The 1550+ Formula (your best chance at getting 1550+) ⤵️ https://www.skool.com/satprep/about?r... Summary of the video ⤵️ Use Desmos commands like mean() and stdev() to solve data questions instantly instead of calculating by hand. The mean is pulled toward outliers, while the median remains in the middle and is better for skewed data. Standard deviation measures spread, so a wider graph means a higher standard deviation. Adding a number to every data point shifts the mean/median but does not change the standard deviation or range. Multiplying every data point changes both the center (mean/median) and the spread (standard deviation/range). In a box plot, the line inside the box always represents the median, not the mean. For histograms, find the maximum possible mean by assuming every value is at the top of its range. The line of best fit represents predicted values, while the dots represent actual data points. When converting volume units like feet to inches, you must cube the conversion number (e.g., 12 cubed). For percent increase, multiply the original number by 1+[percent increase]; for percent decrease, multiply by 1-[percent decrease]. Calculate probability by finding the total number first, then dividing the target number by that total. If a probability question says "given that," your total is only the group mentioned, not the whole table. You can only generalize survey results to the specific group you sampled from (e.g., 4th graders, not the whole school). To establish cause and effect, an experiment must use random assignment. Increasing the sample size always decreases the margin of error. Why watch? If this is your first view—hi, I’m James 👋 I've personally scored a 1570 on the Digital SAT (770 English, 800 Math) and have spent thousands of hours split-testing strategies, analyzing data, and building a system that helps students reliably break into the 1500+ range. Today there are a lot of SAT tutors online, but I’ve noticed none of the strategies they share even compare to the ones I've discovered in terms of effectiveness. So this channel is my way of transforming the SAT industry. Hopefully I can help you improve your SAT score, and in doing so, open doors that shape the rest of your life 🙏 Like, subscribe, and leave me a comment if you have a specific request! Thanks. Chapters 00:00 Intro 00:16 One Variable Data (2.74%) 42:49 Ad 43:11 Two Variable Data (2.20%) 56:18 Converting Units (2.38%) 1:26:52 Percents (3.66%) 1:52:17 Probability (1.74%) 2:03:56 Generalization (0.55%) 2:25:18 Outro