Each dot in the sterplot above represents the temperature and the number of people who visited a beach in Lagos,

Question

Each dot in the sterplot above represents the temperature and the number of people who visited a beach in Lagos, Nigeria, on one of eleven different days. The line of best fit for the data is also shown. The line of best fit for the data has a slope of approximately 57. According to this estimate, how many additional people per day are predicted to visit the beach for each 5°C increase in average temperature?

Accepted Answer

The correct answer is 285. The number of people predicted to visit the beach each day is represented by the y -values of the line of best fit, and the average temperature, in degrees Celsius ( ), is represented by the x -values. Since the slope of the line of best fit is approximately 57, the y -value, or the number of people predicted to visit the beach each day, increases by 57 for every x -value increase of 1, or every increase in average temperature. Therefore, an increase of in average temperature corresponds to a y -value increase of additional people per day predicted to visit the beach.

Question each-d