Scatterplots and Linear Regression

Front

What is the correlation between length of running start and distance of jump? Options: positive:  the further you run the further you jump, negative: the less you run the less distance of your jump, positive: the further your running start the less your distance

Back

positive:  the further you run the further you jump

Front

Predict resting heart rate after 6 hours of exercise a week.

Back

55

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 no relationship? Options: Graph A, Graph B, Graph C, Graph D

Back

Graph D

Front

Describe the correlation in the graph shown.

Back

Strong Positive

Front

Interpret the slope of the equation y = 1.5x + 12.

Back

The slope is 1.5. It means that it costs $1.50 per topping.

Front

What does the y-intercept mean in the context of the problem?
y= 40x+100, where x is number of weeks and y is weight in grams.

Back

The predicted weight of the rat at birth.

Front

About how many male math teachers were there in 2006? Options: 15, 30, 35, 45

Back

35

Front

Possible line of best fit for the data: y = -5/2x + 20, y = -x + 19, y = x + 20, y = 2/3x + 15

Back

y = -5/2x + 20

Front

Estimate the value of r: Options: 0.03, -0.99, 0.79, -0.72

Back

-0.72