A store asked 250 of its customers to study the relationship between the amount spent on groceries and income. a meaningful display of the data from this study would be <u>a scatterplot</u>
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Using Cartesian coordinates, a scatterplot is a form of plot or mathematical diagram that shows values for typically two variables for a set of data. An additional variable can be shown if the points are color-, shape-, or size-coded.
When one continuous variable is under the experimenter's control and the other depends on it or when both continuous variables are independent, a scatterplot can be utilized. The data are shown as a series of points, with each point's value dictating its position on the horizontal axis and its value dictating its position on the vertical axis.
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The present value of the cash-flow stream if the interest rate is 6% is $323.03.
<h3>What is the interest rate?</h3>
The interest rate can be defined as the amount or the percentage that is being fixed or fluctuating depending upon the condition of the agreement. The interest is calculated on the amount that is being loaned or given to the individual or a company.
According to the given question, the interest rate is 6%
1st year $120
2nd year $320
3rd year $220
Now, by applying the formula for the present value:


= 113.20 + 284.96 + 184.87
= 323.03
The present value of the cash flow stream is $323.03
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D) magazines can only be deducted if purchased for a business.