15. [0.68/1 Points] DETAILS PREVIOUS ANSWERS MENDSTAT15 3.2.025.5. MY NOTES ASK YOUR TEACHER Male crickets chirp by rubbing their front wings together. They chirp faster with increasing temperature and slower with decreasing temperatures. The following table shows the number of chirps per second for a cricket, recorded at 10 different temperatures. Chirps per second 19 20 Temperature 18 73 91 85 82 75 69 82 69 83 LA USE SALT (a) Which of the two variables (temperature and number of chirps) is the independent variable, x? temperature O number of chirps Which of the two variables (temperature and number of chirps) is the dependent variable, y? O temperature number of chirps (b) Plot the data using a scatterplot. 24 24 85 85 22 22 80 80 75 20 20 75 70 18 18 70 O 20 22 24 O 70 75 80 85 90 70 75 80 85 90 18 20 22 24 How would you describe the relationship between temperature and number of chirps? " Temperature and number of chirps per second show a positive linear relationship. As temperature increases chirps per second tends to be higher. Temperature and number of chirps per second show a positive linear relationship. As temperature increases chirps per second tends to be lower. Temperature and number of chirps per second show a negative linear relationship. As temperature increases chirps per second tends to be higher. Temperature and number of chirps per second show a negative linear relationship. As temperature increases chirps per second tends to be lower. (c) Find the least-squares line relating the number of chirps to the temperature. (Round your numeric values to three decimal places.) 1.224 + 0.0306x (d) If a cricket is monitored at a temperature of 76 degrees, what would you predict his number of chirps would be? (Round your answer to the nearest whole number.) X chirps