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Question: A coin is tossed three times and the sequence of heads and tails is recorded.
a. List the sample space.
b. List the elements that make up the following events: (1) A = at least two heads, (2) B = the first two tosses are heads, (3) C = the last toss is a tail.
c. List the elements of the following events: (1) Ac , (2) A ∩ B, (3) A ∪ C.
The random variable X, representing the number of accidents in a certain intersection in a week, has the following probability distribution
a sample of 10 observations is selected from a normal population for which the population standard deviation is known
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It is estimated that 55% of the freshmen entering a particular college will graduate from that college in four years. a. For a random sample of 5 entering freshmen, what is the probability that exactly 3 will graduate in four years?
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The superintendent of a large office complex, upon evaluating 30 of the units recently purchased and finding their mean power consumption to be 805 watts, claims that her shipment does not meet company specifications. At the 0.05 level of signific..
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White blood cell counts for a group of volunteers before being innoculated, and white blood cell counts for a second group of volunteers after being innoculated.
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