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$Math 124: Math 124: College Algebra Course Outline College ...$

Expected Value and Variance ■ Expected Value x f(x) xf(x) 0 .40 .00 1 .25 .25 2 .20 .40 3 .05 .15 4 .10 .40 E(x) = 1.20 expected number of TVs sold in a day
Expected Value and Variance ■ Variance and Standard Deviation E(x) = 1.20 x x - μ (x - μ) 2 f(x) (x - μ) 2 f(x) 0 1 2 3 4 -1.2 -0.2 0.8 1.8 2.8 1.44 0.04 0.64 3.24 7.84 .40 .25 .20 .05 .10 .576 .010 .128 .162 .784 Variance of daily sales = σ 2 = 1.660 TVs squared Standard deviation of daily sales = 1.2884 TVs
Page 1 and 2: Chapter 5 Discrete Probability Dist
Page 3 and 4: Example: JSL Appliances ■ Discret
Page 5 and 6: Random Variables Question Random Va
Page 7 and 8: Discrete Probability Distributions
Page 9 and 10: Discrete Probability Distributions
Page 11: Expected Value and Variance The exp
Page 15 and 16: Binomial Distribution Our interest
Page 17 and 18: Binomial Distribution ■ Binomial
Page 19 and 20: Binomial Distribution ■ Using the
Page 21 and 22: Binomial Distribution ■ Expected

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