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Examples of Independent and Dependent Variables

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1) A company that sells different types of slippers wants to see how their new line of comfortable walking slippers sells so the company keeps changing the price on this certain product several times to find the best price for it. The company records the quantity it sells for each price level and then performs a linear regression. The line shows which consumers reduce their consumption of the product as prices increase, which could help future pricing decisions.

2) A different company has been selling comfortable walking slippers for years now. They have recorded the steady increase of the sales of these walking slippers every month. They want to figure out the upward trend in sales so they create a trend line and use linear analysis to use the slope of the line to predict sales in future months.

What are the independent and dependent variables in these examples?

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1) In this ...

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Examples of independent and dependent variables are provided. The selling comfortable walking slippers are a steady increase of sales is given.

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Independent and Dependent Variables of Experiments

Module 1
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For the following scores, find the value of each expression: a)∑X B) ∑X2 C) (∑X)2 D) ∑( X-1) where x = 6, 1, 3, 4, 2
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Square each score, then add the squared values
Add the scores, then square the sum
Add two points to each score, then subtract 6 points from the total.

Chapter 2
Sketch a histogram and a polygon showing the distribution of scores presented in the following table:
X = 5, 4,3,2,1
F = 1, 5,6,3,2
Schmidt (1994) conducted a series of experiments examining the effects of humor on memory. In one study, participants were shown a list of sentences of which half were humorous and half were nonhumorous. Schmidt then measured the number of each type of sentence recalled by each participant. Following are hypothetical results similar to those obtained by Schmidt.
Number of Sentences recalled
Humorous Nonhumorous
4, 5, 2, 4 5, 2, 4, 2
6, 7, 6, 6 2, 3, 1, 6
2, 5, 4, 3 3, 2, 3, 3
1, 3, 5, 5 4, 1, 5, 3
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Sketch a polygon showing the data for the humorous sentences.
On the same graph, sketch a polygon for the nonhumorous sentences. (Use a solid line for one polygon and a dashed line for the other.)
Looking at your graph, does it appear that humor has an influence on memory for sentences?

Chapter 3
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Weeks Rainfall Mon.-Fri, Rainfall on Weekends
1 1.2 1.5
2 0.6 2.0
3 0.0 1.8
4 1.6 1.5
5 0.8 2.2
6 2.1 2.4
7 0.2 0.8
8 0.9 1.6
9 1.1 1.2
10 1.4 1.7
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Chapter 4
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Thank you in advance and please show all work so I can figure these problems out.

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