Could someone please help me with this part of my assignment? It's overdue, please help!
2 answers:
Answer:
1. The question that asks about the relationship between two events can be "Did advertising affect the sales of a TV or not?"
2. The Scatter plot along with the Regression line is shown below.
3. This Residual plot indicates a linear relationship because it is a straight line (If we have a curve, not a straight line then it will be a non-linear relationship between sales and advertisement. As the advertisement for TV is increased it increases the sales of TV.
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Answer:
MAD = 2
Step-by-step explanation:
<u><em>First We'll find the mean of data</em></u>
Mean =
Mean = 4
<u><em>Then, we'll find absolute deviation</em></u>
=> |4-3| = 1
=> |4-2| = 2
=> |4-1| = 3
=> |4-1| = 3
=> |4-3| = 1
<em><u>Now, taking the mean of these absolute deviations:</u></em>
MAD =
MAD =
MAD = 2