Scatterplots Quiz

The scatterplot shows the number of guests who visited the hotel pool and the temperature on those days . Estimate the location of the line of the best fit. About how many guest will vist the pool when the temperature is 85°F?

26 guests

The scatterplot shows the number of home runs Mario hits during his first four seasons on the company softball team. If his output continues to follow the linear model, approximately how many home runs will Mario hit during his ninth season?

35

A scatterplot is used to display data where x is the amount of time, in minutes, one member can tolerate the heat in a sauna, and y is the temperature, in degrees Fahrenheit, of the sauna. Which interpretation describes a line of best fit of y = -1.5x + 173 for the data?

A

Irina plotted the number of participants in a summer camp program on a coordinate plane to create the following scatterplot. Which graph shows the line of best fit for this scatterplot?

A

A scatterplot is used to display data for a runner where x is the number of miles run, and y is the time, in minutes, that it takes to run that distance.Which interpretation describes a line of best fit of y = 9.5x for the data in the scatterplot?

B 9.5 minutes

Poloma believes that the equation of the line of best fit for the following scatterplot is . Which statement best summarizes why she must be wrong?

B- postivie slope

The graph displays the relationship between the length of time an employee works at a company and the number of the

C

The scatterplot shows the number of athletes on the field hockey and tennis teams at Southern High School during seven

C

The table below shows the lengths and weights of six dolphins at an aquarium. Use the data from Pax and Snowflake to

JOJO- The dolphin's weight that differs most from the value predicted by this model is JoJo's (31 lb of difference)

For which data set is a linear regression most reasonable?

a set of four data pairs with a correlation coefficient r = -0.8