Scatterplots & 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

Which scatter plot shows no relationship? Options: Graph A, Graph B, Graph C, Graph D

Back

Graph D

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 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

Foot length: 30 cm. What might the height be? Options: 185 cm, 180 cm, 190 cm, 192 cm.

Back

192 cm

Front

Table comparing foot length to height in cm. Calculate a line of best fit.

Back

f(x) = 5.57x + 25.05

Front

What is the line of best fit? Options: f(x)= 5x+1.82, cannot be determined, f(x)= 1.82x + 5.02, f(x)= 1.1x + 4.2

Back

f(x)= 1.82x + 5.02