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← Actuary Exam 1Test

Question Limit

of 80 available terms

5 Matching Questions

1. Choosing ordered subset of size k withouth replacement from n objets:
2. Continuous Uniform Distribution: F(x) =
3. Discrete Distribution:
4. When considering permutations, the order is:
5. P[A or B or C] =
1. a P[A] + P[B] + P[C] - P[A & B] - P[A & C] - P[B & C] + P[A & B & C]
2. b n! / (n-k)! P(n,k)
3. c integral (a to x) f(x) dx = (x-a) / (b - a)
4. d Can only take on values from a finite infinite sequence.
5. e important: {a,b} does not equal {b,a}

5 Multiple Choice Questions

1. the probability or density function is maximized.
2. a^2Var[X]
3. lamn / (lamn - t) t<lamn
4. VAR[X] + VAR[Y] + 2*COV[X,Y]
5. (1-p) / p

5 True/False Questions

1. Conditional Probability: P[B] =P[B(giv)A] P[A] + P[B(giv)A'] P[A']

2. told: exponential distribution with mean of 3 (lamna =)lamn(e^(-lamn*x))

3. Exponential Distribution: E[X] & VAR[X] =1/lamn & 1/(lamn^2)

4. For Discrete Random Variable E[X] =x1p(x1) + x2p(x2) + .......

5. Mx(t) =E[e^(tx)]