WGU Applied Probability and Statistics (FZO1 C955) - Applied-Probability-and-Statistics Exam Practice Test
A class of 25 students includes 10 who play soccer, 8 who play basketball, and 7 who play neither sport.
What is the probability of randomly selecting a student who does not play soccer?
What is the probability of randomly selecting a student who does not play soccer?
Correct Answer: D
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Sample mean = best point estimate of population mean?
Correct Answer: C
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Two dice rolled. Probability sum = 7?
Correct Answer: B
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A home inspector finds 3% of the homes in a community infected with termites.
How should the home inspector's findings be interpreted?
How should the home inspector's findings be interpreted?
Correct Answer: A
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A 10-sided die is rolled in a role-playing game.
What is the probability of rolling a number that is a multiple of 2 or greater than 7?
What is the probability of rolling a number that is a multiple of 2 or greater than 7?
Correct Answer: A
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What is the result of 2/5 + 1/3 # 1/4?
Correct Answer: B
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A commuter has a .4 probability of taking the bus to work, a .4 probability of driving a car, and a .2 probability of cycling. The probability of being late is .15 when taking the bus, .05 when driving a car, and .1 when cycling.
What is the probability of taking the bus and being on time, or driving a car and being on time?
What is the probability of taking the bus and being on time, or driving a car and being on time?
Correct Answer: D
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A person has a .5 probability of taking a train to work, a .3 probability of carpooling, and a .2 probability of walking. The probability of being late is .2 when taking the train, .1 when carpooling, and .05 when walking.
What is the probability of taking the train and being on time, or walking and being on time?
What is the probability of taking the train and being on time, or walking and being on time?
Correct Answer: A
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Binomial expected value = ?
Correct Answer: C
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Central limit theorem applies when:
Correct Answer: A
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Sample mean = 40, SD = 8, n = 16. Standard error = ?
Correct Answer: D
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What percent of data lies within 2 standard deviations of the mean in a normal distribution?
Correct Answer: A
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