Scatter Plots HW #2
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The scatter plot would have shown a positive association.
Maria went to the restaurant and waited 90 seconds to place her order. Use the trend line equation to predict how many employees were working.
Write an equation for the trend line.
Pay attention to your y-axis!
DO NOT USE ANY SPACES, use / for a fraction.
What does x represent in the equation?
What does y represent in the equation?
How can the trend line equation be used to predict the cost of gas per gallon in the year 1992?
Paul wants to know when gas would have cost about $1.50 per gallon. What step should he take?
Use the trend line equation to predict the cost of gas per gallon in 2017.
Use the trend line equation to predict when gas would cost about $4.00.
(type the year)
Which best describes the meaning of the slope in the trend line equation?
Ashton walked into the restaurant and 4 employees were working registers. Use the trend line equation to predict how long he will wait to place his order.