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Question
The __________ denotes the number of standard deviations xiis from the mean
.a. range
b. median
c. z-score
d. third quartile
Answer
This answer is hidden. It contains 1 characters.
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c. yes
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If two events are independent, then
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b. the sum of their probabilities must be equal to one
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d. None of the other answers is correct.
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The multiplication law is potentially helpful when we are interested in computing the probability of
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b. the intersection of two events
c. the union of two events
d. None of the other answers is correct.
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Which of the following statements is(are) always true?
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If A and B are mutually exclusive events with P(A) = 0.3 and P(B) = 0.5, thenP(A B) =a. 0.00b. 0.15c. 0.8d. 0.2
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a. can be any value between 0 to 1
b. must always be equal to 1
c. must always be equal to 0
d. can be any positive value
Q:
The probability of the union of two events with nonzero probabilities
a. cannot be less than one
b. cannot be one
c. cannot be less than one and cannot be one
d. None of the other answers is correct.