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Algebra 1

3.6.5 Practice

Algebra 13.6.5 Practice

3.6.5 Practice

3.6.5 • Practice

Complete the following questions to practice the skills you have learned in this lesson.

  1. Chloe creates a scatter plot showing the relationship between the number of steps she takes and her heart rate. The correlation coefficient of the line of best fit is 0.88.

    Are they correlated? Be prepared to show your reasoning.
  1. No, the correlation coefficient is more than 0.
  2. Yes, the correlation coefficient is more than 0.
  3. No, the correlation coefficient is close to 1.
  4. Yes, the correlation coefficient is close to 1.
  1. Kiran creates a scatter plot showing the relationship between the number of students attending drama club and the number of students attending poetry club each week. The correlation coefficient for the line of best fit is –0.36. Are they strongly correlated? Be prepared to show your reasoning.
  1. Yes, the correlation coefficient is close to 0.
  2. No, the correlation coefficient is negative.
  3. Yes, the correlation coefficient is more than 0.
  4. No, the correlation coefficient is closer to 0.
  1. Which of the following is a causal relationship?
  1. The number of minutes spent running and the number of calories burned.
  2. The temperature outside and number of people wearing shorts.
  3. The number of people in a family and the amount of the electric bill.
  4. The age of a person and the number of words they know.
  1. Which of the following is a causal relationship?
  1. The number of children in a family and the number of pets in the home.
  2. The amount of sugar a person eats and their level of happiness.
  3. The number of students in a school and the state test scores.
  4. The number of miles driven and the cost of gas for a trip.
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