Making Predictions Answers

Antonia recorded the number of cups of hot chocolate that were sold at soccer games compared to the outside temperature. The graph below represents her data.Hot Chocolate SalesFor which temperature would the prediction of the number of cups sold be an interpolation?

Bryce wrote the linear regression equation to predict the armspan, y, of a person who is x inches tall. Riley has an armspan of 67.5 inches. Which is the best prediction of Riley’s height?

For the data that are shown on the graph below, which best describes within which range of x-values extrapolation occurs?

Xavier created a scatterplot and a trend line for data that he collected by comparing the number of minutes he spent playing a game and the number of levels he passed. Video GameAccording to the graph, which combination of minutes played and levels passed seem most likely to be possible?

The scatterplot and trend line below represent the amount of money earned after completing x chores. If Jamie completed 5 chores, about how much money did she earn?

Pedro created a scatterplot and a trend line for data that he collected by comparing the number of minutes playing a game and the number of levels passed. Video Game Based on the information shown, which is the best prediction for the number of levels passed after playing for 20 minutes?

A store owner recorded the total number of customers that visited his store at the end of each hour that the store was open. He created the scatterplot, trend line, and equation below based on the data. Store CustomersAssuming that the trend continues, which is the best estimate for the number of hours that the store will have been open when the total customer count is 310?

The graph below shows the relationship between the number of chores that Larissa completes and the amount of money that she earns. Which is the best prediction of the number of chores completed if she earns $5?

Steven created the scatterplot and trend line below to model the relationship between the number of innings he pitched and the number of pitches he threw in a baseball game. Baseball PitchesIf Steven threw 87 pitches, about how many innings did he pitch?

An employer uses the linear regression equation to predict the weekly salary, y, of an employee who sells x dollars worth of merchandise. Last week, Joaquin sold $1500 worth of merchandise. The same week, Alex earned $650. Using the regression equation, which is an accurate comparison?