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- 0.1 Welcome (1)
- 3.0 Numerical Descriptions of Data (1)
- 3.1 Measures of Center (1)
- 3.2 Measures of Dispersion (1)
- 3.3 Constructing Samples (1)
- 3.4 Measures of Relative Position (1)
- 4.0 Probability - Randomness and Uncertainty. (1)
- 4.1 Classical Probability (1)
- 4.2 Probability Rules (1)
- 4.3 Counting Rules (1)
- 4.4 Additional Counting Techniques (1)
- 5.0 Types of Discrete Random Variables (1)
- 5.1 Discrete Random Variables (1)
- 5.2 The Binomial Distribution (1)
- 5.3 The Poisson Distribution (1)
- 6.0 Continuous Random Variables (1)
- 6.1 Introduction to the Normal Curve (1)
- 6.2 Reading a Normal Curve Table (1)
- 6.3 The Normal Distribution (1)
- 6.4 Find the Value of z (1)
- 6.5 Find the Value of t (1)
- 7.1 Sampling Distributions: Proportions (1)
- 7.2 Sampling Distributions: Means (1)

- Professor Arvan
- I retired in summer 2010. Before that I was CIO and Associate Dean for eLearning in the College of Business and an Associate Professor of Economics at the University of Illinois at Urbana-Champaign. I've done some teaching since I retired.

Hi,

ReplyDeleteI got one question in this chapter.

Please refer to the following question:

Give the sample 14,14,5,5,-19,5, add one more sample value that will not change the mode nor the range.

According to the solution, the correct answer is -14.

I understand that the mode is 5.

And the range should be between 14 and -19.

I just wondering that except 14, every number between 14 and -19 could be the correct answer to be the added value in this set.

So I was a little confused about the answer.

Could you give me some instruction about this problem?

Thank you very much,

Elsa

I believe that given the way the question is written they only want you to choose from values already in the sample. That said, I don't understand why 5 and -19 aren't both answers. I'm out of the office now. Will look when I return to see if I can give more info.

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