Exploring Scatter Plots and Predictions

What type of association does a graph have if it shows a downward trend?

• Linear association

• Non-linear association

• Negative association

• Positive association

In the context of Halloween candy, what happens to the amount of candy taken as the hours since 4 PM increase?

• Fluctuates unpredictably

• Remains constant

• Increases

• Decreases

What does a linear scatter plot look like?

• It has no discernible pattern

• It forms a straight line

• It forms a circle

• It forms a curved line

In the Easter egg hunt example, what happens to the number of eggs collected as age increases?

• Increases

• Decreases

• Remains constant

• Fluctuates unpredictably

How do you start making a prediction with a scatter plot?

• By calculating the median

• By calculating the mean

• By drawing a trend line

• By identifying outliers

What is the predicted pounds of turkey eaten when there are 10 people at the meal?

• About 16 pounds

• About 15 pounds

• About 20 pounds

• About 12 pounds

If a nursery has 15 poinsettias left for sale, approximately what day in December is it?

• December 27th

• December 25th

• December 24th

• December 26th

What is the first step in finding the mean absolute deviation?

• Draw a scatter plot

• Find the median of the data

• Calculate the range of the data

• Find the mean of the data

What is the mean absolute deviation of the fireworks data set?

• 30.8

• 24.8

• 26.8

• 28.8

Why do we use the absolute value when calculating mean absolute deviation?

• To identify outliers

• To determine the distance from the mean

• To find the range

• To calculate the median