Regression Models - Quiz Quiz Answers

Which model best represents the data set?

Which is the best prediction for the number of minutes of exercising Sam will do if she spends 30 minutes watching television that day?

Which function best models the data?

Which is the best prediction for the number of pages in a chapter that takes 18 minutes to read?

For which temperature will the model most accurately predict the time spent cooling?

The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and found that it could be modeled using the equation f of x is equal to negative 0 point 3 x squared plus 2 x , where f of x is the height of the path of the water above the ground, in feet, and x is the horizontal distance of the path of the water from the end of the hose, in feet. When the water was 4 feet from the end of the hose, what was its height above the ground?

If Amelia wants to make the maximum amount of money working only 22 hours per week, which company should she work for? Explain your answer.

A new interesting facts podcast dropped on March 1 The crew tracked the number of listeners each week for 10 weeks. The function f⁡(x)=3.4⁢(1.21)^x approximates the number of thousands of listeners x weeks after the podcast first aired. About how many listeners were there after 6 weeks? Round your answer to the nearest whole number. Enter your answer in the box.

She calculates two regression models. Which is true?

Marta’s mother shared a funny video of their cat on the Internet. The total number of people who had viewed the video over the first 30 days could be modeled using the function f of x is equal to 33 times 1 point 3 to the x th power where x is the number of days the video has been online. About how many people had viewed the video once it had been online for 20 days?

What does the graph of the regression model show?

The data in the table represents a company's profit based on the number of items produced. Profit Based on Number of the Items Produced Items Produced x Dollars of profit y 100 negative 70 comma 500 200 50 300 50 comma 100 400 80 comma 300 500 90 comma 400 600 78 comma 000 Which equation best represents the data?

For which year would this model most likely be sufficient to make a prediction of the population?

Juan analyzes the amount of radioactive material remaining in a medical waste container over time. He writes the function f of x is equal to 10 times 0 point 9 8 to the x th power to represent the amount of radioactive material that will remain after x hours in the container. Rounded to the nearest tenth, how much radioactive material will remain after 10 hours?

Based on the exponential regression model, which is the best estimate of the value of the account 12 years after it was opened?

Which best describes her prediction?

Based on the graph of the regression model, which is true?

Using the exponential regression model, which is the best prediction of the wavelength of the key that is 8 above the A above middle C?