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21. In a statistic class, 10
scores were randomly selected with the following results were obtained: 74, 73,
77, 77, 71, 68, 65, 77, 67, 66 What is the 10th percentile? A. 65.9 B. 67.3 C.
65.50 D. 73.85 E. 77.0 6

22.
A(n) ____________ is the probability that one event will occur given that we
know that another event already has occurred. A. Sample space outcome B.
Subjective Probability C. Complement of events D. Long-run relative frequency
E. Conditional probability

23. Two mutually exclusive
events having positive probabilities are ______________ dependent. A. Always B.
Sometimes C. Never

24. The _______ of two events X
and Y is another event that consists of the sample space outcomes belonging to
either event X or event Y or both event X and Y. A. Complement B. Union C.
Intersection D. Conditional probability

25. In which of the following
are the two events A and B, always independent? A. A and B are mutually
exclusive. B. The probability of event A is not influenced by the probability
of event B. C. The intersection of A and B is zero. D. P(A|B) = P(A). E. B and
D.

26. If two events are
independent, we can _____ their probabilities to determine the intersection
probability. A. Divide B. Add C. Multiply D. Subtract

27. If
events A and B are independent, then the probability of simultaneous occurrence
of event A and event B can be found with: A. *P(A)**P(B) *B. *P(A)**P*(*A|B*) C. *P(B)**P*(*A|B*)*) *D. All of the above are correct

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06 Mar 2018

Due Date: 06 Mar 2018
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