1 After New YearSolutiona 3C3 0203 102033 0008 b PX1 1 P

1. After New Year

a. 3C3 * (0.20)³ (1-0.20)^3-3 = 0.008

b. P(X>=1) = 1 - P(X=0) = 1 - 4C0*(0.20)⁰(1-0.20)^4-0 = 0.5904

c. P(X=1) = 5C1*(0.20)¹(1-0.20)^5-1 = 0.4096

1. After New YearSolutiona. 3C3 * (0.20)3 (1-0.20)3-3 = 0.008 b. P(X>=1) = 1 - P(X=0) = 1 - 4C0*(0.20)0(1-0.20)4-0 = 0.5904 c. P(X=1) = 5C1*(0.20)1(1-0.20)5-

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