It Is Believed That Number of People Who Attend a Mardi

question 106

Multiple Choice

It is believed that number of people who attend a Mardi Gras parade each year depends on the temperature that day.A regression has been conducted on a sample of years where the temperature ranged from 28 to 64 degrees and the number of people attending ranged from 8400 to 14,600.The regression equation was found to be = 2378 + 191x.Which of the following is true?

• A)The average change in parade attendance is an additional 2378 people per one-degree increase in temperature.
• B)The average change in parade attendance is an additional 191 people per one-degree increase in temperature.
• C)If the temperature is 75 degrees,we can expect that 16,703 people will attend.
• D)If the temperature is 0 degrees this year,then we should expect 2378 people to attend.