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Unformatted text preview: event is a(n) _____ probability distribution.
A. Binomial
B. Uniform
C. Exponential
D. Normal AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Topic: Exponential Distribution 1487 Chapter 01  An Introduction to Business Statistics 49. A continuous probability distribution having a rectangular shape where the probability is
evenly distributed over an interval of numbers is a(n) _____ distribution.
A. Exponential
B. Binomial
C. Normal
D. Uniform AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Easy
Topic: Uniform Distribution 50. The specific shape of each normal distribution is determined by its _____ and _____.
A. Mean, Standard Deviation
B. Median, Standard Deviation
C. Mean, Variance
D. Median, Variance AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Normal Distribution 51. The number of standard deviations that a value x is from the mean is a(n) _____.
A. Variance
B. Exponential value
C. Zscore
D. Area AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Normal Distribution 1488 Chapter 01  An Introduction to Business Statistics 52. The area under the curve of a valid continuous probability distribution must _____.
A. Equal 1
B. Be between 0 and 1
C. Be infinite
D. Be less than 1 AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Topic: Continuous Probability Distribution 53. Given that X is a normal random variable, the probability that a given value of X is below
its mean is ________________.
A. 1
B. equal to 0.5
C. less than 0.5
D. greater than 0.5 AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Easy
Topic: Normal Distribution 54. A normal distribution with mean zero and a standard deviation one is called the _____
normal distribution.
A. Continuous
B. Uniform
C. Exponential
D. Standard AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Easy
Topic: Normal Distribution 1489 Chapter 01  An Introduction to Business Statistics 55. The thickness of randomly selected metal piece is a ___________ random variable.
A. Poisson
B. Continuous
C. Discrete
D. Binomial AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Continuous Random Variable 56. __________ values of the standard deviation results in a normal curve that is wider and
flatter.
A. Smaller
B. Equal
C. Larger
D. Uniform AACSB: Reflective Thinking
Bloom's: Synthesis
Difficulty: Medium
Topic: Normal Distribution 57. _____________ values of the standard deviation results in a normal curve that is narrower
and more peaked.
A. Smaller
B. Equal
C. Larger
D. Uniform AACSB: Reflective Thinking
Bloom's: Synthesis
Difficulty: Medium
Topic: Normal Distribution 1490 Chapter 01  An Introduction to Business Statistics 58. The mean of a standard normal distribution is always equal to _______.
A. 1
B. 0.5
C. 0
D. 1 AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Easy
Topic: Normal Distribution 59. The standard deviation of a standard normal distribution is always equal to _____.
A. 1
B. 0.5
C. 0
D. 1 AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Topic: Normal Distribution 60. For a normal population with a mean of 10 and a variance 4, the P(X ≥ 10) is ___.
A. 1.0
B. 0.5
C. 0.75
D. 0.25 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Normal Distribution 1491 Chapter 01  An Introduction to Business Statistics 61. If the random variable of x is normally distributed, ____ % of all possible observed values
of x will be within two standard deviations of the mean.
A. 99.73
B. 68.26
C. 95.00
D. 95.44 AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Easy
Topic: Normal Distribution 62. The time of travel from a person's apartment to the bus station follows a uniform
distribution over the interval from 20 to 30 minutes. If he/she leaves home at 9:05 AM, what
is the probability that he/she will get to the station between 9:25 and 9:30 AM?
A. 1.0
B. 0
C. 0.5
D. 0.25 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Uniform Distribution 1492 Chapter 01  An Introduction to Business Statistics 63. Given the length an athlete throws a hammer is a normal random variable with mean 50
feet and standard deviation 5 feet, what is the probability he throws it:
No less than 55 feet?
A. .8413
B. .1587
C. .6826
D. .3174 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Normal Distribution 64. Given the length an athlete throws a hammer is a normal random variable with mean 50
feet and standard deviation 5 feet, what is the probability he throws it:
Between 50 feet and 60 feet?
A. .9972
B. .5000
C. .9544
D. .4772 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Normal Distribution 1493 Chapter 01  An Introduction to Business Statistics 65. If the scores on an aptitude test are normally distributed with mean 500 and standard
deviation 100, what proportion of the test scores are less than 585?
A. .1977
B. .8500
C. .1500
D. .8023 AACSB: Analytical Studies
Bloom's: Ap...
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This document was uploaded on 01/20/2014.
 Winter '14

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