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Barron's Ap Statistics

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I read Barron’s How to Prepare for the AP Statistics Exam. A very educational book helped a lot on the AP test. It clarified ideas that I was uncertain on. It helped me to understand when to use each test and the assumptions needed for each test. Type I and Type II errors were explained in such a way that they became crystal clear to me instead of muddy. Computer and Minitab outputs were thoroughly explained, and I became comfortable with them after reading this book. The Barron’s guide also formatted equations in the same manner as the AP equation sheet, which helped me become familiar with this format before going into the AP test. I feel that the Barron’s guide helped me to review all the Statistics concepts and refreshed my …show more content…

The Barron’s guide more effectively explained the necessary steps for a confidence interval, as well. The Brase text and Barron’s guide also differ in their treatment of formulas, specifically the Binomial Formula for Probability. In the Brase text, the binomial formula is: P(r) = n! (pr qn-r) r!(n-r)!
While in the Barron’s guide it is: This equation is given to us on the AP formula sheet, so since Barons actually teaches you how to use this specific formula it makes it much easier to understand and was very helpful on the AP Exam. Another topic the Brase text did not cover very thoroughly was the Least Squares Line. Brase simply defines the line as, “The least-squares line devolved with x as the explanatory variable and y as the response variable can be used only to predict y values from specific x values. Baron 's on the other hand goes into detail in explaining how to find the line, its slope, and the standard deviation. It gives the equation ŷ=y + b1 (x-x). It also goes onto define ß as the slope of the true regression line, which can be found using a t score with degrees of freedom n-2. The equation for standard deviation is the sum of the squared residuals divided by the sum of the squared deviations of the mean. Overall, this AP study book was a very helpful tool in preparing for the exam. It explained difficult concepts in a much

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