For a statistics project a student gathered data on monthly car insurance premiums paid by students and faculty at a California community college in 2008. She found a fairly strong linear relationship between driving experience and monthly car insurance premiums. She used the line shown in the scatterplot to summarize the pattern in the data. Here is the equation of the line: Predicted monthly car insurance premium = 97 - 1.45 * years of driving experience. The predicted monthly car insurance premium paid by someone who has been driving 12 years is ________ dollars a month. Press enter on your keyboard.
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For a statistics project, a student gathered data on monthly car insurance premiums paid by students and faculty at a California community college in 2008. She found a fairly strong linear relationship between driving experience and monthly car insurance premiums. Scatterplot with its regression equation. She used the line shown in the scatterplot to summarize the pattern in the data. Here is the equation of the line: Predicted monthly car insurance premium = 97 - 1.45 * years of driving experience. Which of the following descriptions are a valid method to predict the monthly car insurance premium for someone who has 12 years of driving experience? Find 12 on the horizontal axis, trace up to the line, and read off the corresponding value on the y-axis. Substitute 12 into the equation for years and calculate the predicted premium. Look at the data and find a person who has been driving for 12 years. Report the premium paid by that person.
Teresa W.
Sri K.
4. A random sample of 8 drivers insured with a company and having similar auto insurance policies was selected. The following table lists their driving experiences (in years) and monthly auto insurance premiums: Driving Experience (years) | Monthly Auto Insurance Premium 5 | $64 2 | $87 12 | $50 9 | $71 15 | $44 6 | $56 25 | $42 16 | $60 a. Make a scatter plot of the data b. Calculate the correlation coefficient c. Calculate a simple linear regression with Premium as the dependent variable and Experience as the independent variable d. Is there a relationship between Driving Experience and Insurance Premium? Describe the relationship.
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