STAT 200- Final Exam Guide - Comprehensive Notes for the exam ( 269 pages long!)
Document Summary
No probabilities in between values, no errors. Endpoints matter: p(2 < y < 7) is not equal to p(2 y 7) Points do not exist in the real world. The probability of measuring someone"s exact height = 0. We know a measurement lies between certain numbers. When calculating intervals, it doesn"t matter if you exclude the endpoints or not. The probability that x is between a and b = the area under the graph between a and b. Chi distribution: when skewed to the right: rom 0 to infinity. Beta distribution: 0 - 1, total area = 1. Normal distribution: symmetrical, once you know and , can graph it. If mean changes, shifts from left to right. If sd is changed, changes how spread out it is. If x has a normal distribution, possible values of x are negative infinity to positive infinity. Most lies within 3 standard deviations from mean.
