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STATISTICS S2 TERMS TO LEARN Polynomial Let x1,x2,....xn be real numbers, Then anxn + an-1xn +...a1x +a0 is a polynomial (with real coefficients). Can be defined as f(x). Integration The process of finding an integral of x. ?f(x) dx Definite integral can be found if there is values ? and ß Factorial For a positive integer the notation n! (n factorial) is used for n(n-1)(n-2)...x 2 x 1. 0!=1 4!=4 x 3 x 2 x 1 Binomial Coefficient The number (nCr) = n!/r!(n-r)! Binomial Distribution The discrete probability distribution for the number of successes when n independent experiments are carried out, each with the same probability p of success. X~B(n,p) P(X=r) = (nCr) x pr x (1-p)n - r Independent Events Two events a and b are independent if the occurrence of either does not affect the probability of the other occurring. Mean The mean of random variable x is equal to the expected value E(x). This is the...

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