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Sample Problem. The table below shows the
years of experience
for eight encyclopedia sales representatives and the amount of sales
during
a given period of time.
a) Draw a scatter plot to show how the years of experience and the
amount of sales are related.
b) Write a prediction equation from this data.
c) Predict the amount of sales for a representative with 8 years of
experience.
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Find a suitable scale, and plot the data. |
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Identify two points representative of the best-fit line, and calculate the slope. (I picked (9000,6) and (2000,2)) |
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Substitute one of the points, and solve for b, then write the complete prediction equation. |
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Use the y value of 8 so that we can substitute and calculate the predicted sales for that much experience. |
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1-17,
Odds
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