Essay about Road Rage

875 Words Apr 30th, 2013 4 Pages
A coin is tossed four times. The probability is ¼ or 0.25 that all four tosses will result in a head face up.
Answer
Correct Answer: False

A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of the employees needed corrective shoes, 15% needed major dental work and 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?
Correct Answer:
0.20

A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are
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Correct Answer: True A study by the National Park Service revealed that 50% of the vacationers going to the Rocky Mountain region visit Yellowstone Park, 40% visit the Grand Tetons and 35% visit both. What is the probability that a vacationer will visit at least one of these magnificent attractions?
Correct Answer:
0
The closer a probability is to 0, the more likely the event will happen.
Correct Answer: False

The classical approach to probability requires that the outcomes of an experiment are not equally likely.
Correct Answer: False

The numbers 0 through 9 are used in code groups of four to identify an item of clothing. Code 1083 might identify a blue blouse, size medium. The code group 2031 might identify a pair of pants, size 18, and so on. Repetitions of numbers are not permitted, i.e., the same number cannot be used more than once in a total sequence. As examples, 2256, 2562 or 5559 would not be permitted. How many different code groups can be designed?
Correct Answer:
5,040

A discrete random variable can have only certain clearly separated values.
Correct Answer: True

A listing of all possible outcomes of an experiment and their corresponding probability of occurrence is called a _____________.
Correct Answer:
Probability distribution A

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