MAT 221 Study Guide - Midterm Guide: Joule, Box Plot, Polyvinyl Acetate
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MAT 221 Full Course Notes
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Formulae: least squares regression line: ij = b0 + b1x where b1 = r ~: and b0 = fj- b1 x. Residual at a data point (x, y) is y - y = predicted y - observed y. k: if x is a discrete random variable taking on values x1, , xk with respective probabilities pl, . P(a or b) = p(a) + p(b) - p(a and b) General multiplication ruic: p(a and b) = p(a)p(b i a: sampling distribution of sample mean x n from u srs of size r1 from a population with mean ji and population standard deviation u: If the sample is from a normal distribution, then x n is normal n(jl, a/ fa) regardless of the sample size 11. : 30, by clt, x n is approximately normal n ( , u / vn) regardless of the population distribution: sampling distribution of sample count x and sample proportion p = x/n:
