1. It A and B are mutually exclusive events with P(A) 0.3 and P(B) 0.5, then P(A
ID: 3063596 • Letter: 1
Question
1. It A and B are mutually exclusive events with P(A) 0.3 and P(B) 0.5, then P(A or B)- a. 0 b. 0.15 c. 0.20 d. 0.80 e. None of the answers is correct. 2. A method of assigning probabilities based upon judgment is referred to as the a. relative method b. probability method c. classical method d. frequeney method e. None of the above answers is correct 3. Routine physical examinations are conducted annually as part of a health service program for th loyees. It was discovered that 8% of the employees needed corrective shoes, l5% n empl eeded major del d 3% needed both corrective shoes and major dental work, what is the probability that an employee selected at random will need either corrective shoes or major dental work? a. 0.20 b.0.25 c. 0.50 d. 1.00 e. None of the answers are co lamp manufacturer has developed five lamp bases and four lampshades that could be used together. How many different arrangements of base and shade can be offered? a. 5 b. 10 c. 15 d. 20 e. None of the answers are correct When the assumption of equally likely outcomes is used to assign probability values, the method u assign probabilities is referred to as the a. relative frequency method b. subjective method c. probability methood d. classical method e. None of the above answers is correct. An experiment consists of making 10 telephone calls to randomly selected individuals in order w particular insurance policy. The random variable, the number of sales, is a a. discrete random variable b. continuous random variable C. d. Poisson random variable e. exponential random variable. 6. If two events, A and B, are independent, then a. P(A) P(B) b. P(A)-P(BA) 7. c. P(B) P(AB) d. P(AlB) P(BA) e. None of the above answers is correct. ansExplanation / Answer
1) Solution :
Given that ,
P(A) = 0.3
P(B) = 0.5
So, P(A or B) = P(A) + P(B) = 0.3 + 0.5 = 0.80
Option d) is correct
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