1. __________ is a measure of the random variable’s dispersion about its mean (based on the sum of the squared deviations about the mean)
Answer
Correct Answer:
Variance
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2. Uniform distribution is a probability distribution where the value of a random variable can take any value between a given lower and upper bound with equal probability can be ____________ .
Answer
Correct Answer:
Both
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3. Triangular distribution is a continuous probability distribution with a known lower and upper bound; in the shape of a triangle.
Answer
Correct Answer:
True
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4. Measure of a random variable’s dispersion about its mean (the square root of the variance).
Answer
Correct Answer:
Standard Deviation
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5. Shifted exponential distribution is an exponential distribution where the average time between events is bounded below.
Answer
Correct Answer:
True
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6. ________________ is the possible values that a random variable can take and the likelihood that the random variable will equal those values.
Answer
Correct Answer:
Probability Distribution
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7. Poisson distribution is a discrete probability distribution where the time between events occurs at a constant average rate.
Answer
Correct Answer:
True
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8. A continuous probability distribution that is unimodal and symmetric is called _____________.
Answer
Correct Answer:
Normal (or Gaussian) Distribution
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9. Mean a measure of the central tendency of a distribution; also known as _____________ .
Answer
Correct Answer:
Expected value
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10. ______________ is a continuous probability distribution where the random variable represents the time between Poisson events that occur at a constant average rate.
Answer
Correct Answer:
Exponential Distribution
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11. Discrete probability distribution is a probability distribution where a random variable can only take a value from an identified finite set of possible values.
Answer
Correct Answer:
True
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12. A probability distribution where a random variable can take any value between the limits of a given range is known as :
Answer
Correct Answer:
Continuous Distribution
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13. A discrete probability distribution where the random variable is the number of successes in N trials is called _____________ .
Answer
Correct Answer:
Binomial Distribution
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14. ____________ is a continuous probability distribution that can be unimodal, similar to a normal distribution, but not necessarily symmetric (a special case of a gamma distribution).
Answer
Correct Answer:
Beta Distribution
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