By Stan Gibilisco — McGraw-Hill Professional

Updated on Apr 25, 2014

Review the following concepts if necessary:

- Experiments and Variables Help
- Populations and Samples Help
- Distributions Help
- Statisitcs Definitions Help

**Learning the Statistics Jargon Practice Test **

A good score is 8 correct.

- Suppose a large number of people take a test, and every single student gets exactly half of the answers right. In this case, the standard deviation is
- equal to the mean
- equal to the median
- equal to zero
- impossible to determine without more information

- In a frequency distribution:
- the frequency is the dependent variable
- the median is always equal to the mean
- the mode represents the average value
- the mean is always equal to the mode

- A tabulation of cumulative absolute frequency values is useful in determining
- the mode
- the variance
- the median
- the mean

- A subset of a population is known as
- a sample
- a continuous variable
- a random variable
- a discrete variable

- Imagine that 11 people take a 10-question test. Suppose one student gets 10 correct answers, one gets 9 correct, one gets 8 correct, and so on, all the way down to one student getting none correct. What is the mean score, accurate to three decimal places?
- 4.545
- 5.000
- 5.500
- It is not defined.

- Imagine that 11 people take a 10-question test. Suppose one student gets 10 correct answers, one gets 9 correct, one gets 8 correct, and so on, all the way down to one student getting none correct. What is the median score, accurate to three decimal places?
- 4.545
- 5.000
- 5.500
- It is not defined.

- Imagine that 11 people take a 10-question test. Suppose one student gets 10 correct answers, one gets 9 correct, one gets 8 correct, and so on, all the way down to one student getting none correct. What is the mode score, accurate to three decimal places?
- 4.545
- 5.000
- 5.500
- It is not defined.

- Suppose a variable λ (lambda, pronounced ''LAM-da,'' a lowercase Greek letter commonly used in physics) can attain a value equal to any positive real number. In this instance, λ is an example of
- a continuous variable
- a discrete variable
- an absolute variable
- a relative variable

- The largest cumulative absolute frequency in a set of numbers is equal to
- the sum of all the individual absolute frequency values
- twice the mean
- twice the median
- twice the mode

- Which of the following is an expression of the extent to which values are spread out relative to the mean?
- The average.
- The mode.
- The median.
- None of the above.

**Answers**

- c
- a
- c
- a
- b
- b
- d
- a
- a
- d

From Statistics Demystified: A Self-Teaching Guide. Copyright © 2004 by The McGraw-Hill Companies. All Rights Reserved.

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