Scatterplots & Trend Analysis

Front

The scatter plot shows the number of books read by students in Mrs. Hall’s English class and their final grades. What does the line of best fit indicate?

Back

The more books students read, the higher their English grade.

Front

Which scatter plot shows a linear relationship between x and y? Options: Graph A, Graph B, Graph C, Graph D

Back

Graph C

Front

Which line represents the line of best fit for the scatter plot? Options: A, B, C, D

Back

C

Front

A fifth grade class conducted a 5-minute experiment that involved heating time and water temperature. The results of the experiment are represented in this line graph. What prediction can be made based on the information gathered?

Back

The water temperature increases as the heating time increases.

Front

Why was Trevor's conclusion about a positive correlation between class size and number of absences incorrect?

Back

The data show no relationship between class size and number of absences.

Front

This scatterplot could show the relationship between which two variables? Options: speed of an airplane (x) vs. distance traveled in one hour (y), outside air temperature (x) vs. air-conditioning costs (y), age of an adult (x) vs. height of an adult (y), distance traveled (x) vs. gas remaining in the tank (y)

Back

distance traveled (x) vs. gas remaining in the tank (y)

Front

Equation of the line of best fit?

Back

y = 30x

Front

Equation of the line of best fit? (Hint: READ THE UNITS ON THE AXIS)

Back

y = -3/4x + 11000

Front

Equation of the line of best fit? Options: y = -25x + 170, y = -5/8x + 170, y = 25x + 170, y = 5/8x + 170

Back

y = -25x + 170

Front

What is the line of best fit? Options: y = 5/3x + 375, y = 1/3x + 475, y = 5/3x + 3, y = 1/3x + 375

Back

y = 5/3x + 375