Analyzing Scatter Plots and Predictions

This video tutorial covers Math 8 Unit 6, focusing on associations of data using scatter plots. It includes activities on predicting panda weights, analyzing car fuel efficiency, and predicting dog weights using trend lines. The tutorial emphasizes constructing and interpreting scatter plots, identifying patterns, and using trend lines for predictions.

What is the primary purpose of using scatter plots in data analysis?

• To calculate the sum of all data points

• To determine the mode of a dataset

• To investigate patterns of association between two quantities

• To find the average of data points

In the panda weight prediction activity, what is the predicted weight of a 24-month-old panda?

• 90 kilograms

• 80 kilograms

• 70 kilograms

• 60 kilograms

What trend is observed in the scatter plot of car weight versus fuel efficiency?

• Car weight has no effect on fuel efficiency

• Fuel efficiency increases with car weight

• Heavier cars are less fuel efficient

• Heavier cars are more fuel efficient

Which car has the greatest weight and what is its fuel efficiency?

• Car G, 16 miles per gallon

• Car Q, 30 miles per gallon

• Car L, 19 miles per gallon

• Car S, 60 miles per gallon

What surprising observation is made about cars F and G?

• They have different weights but the same fuel efficiency

• They are both the least fuel efficient

• They have the same weight but different fuel efficiencies

• They are both the most fuel efficient

What is the predicted fuel efficiency for a car weighing 1750 kilograms?

• 22 miles per gallon

• 25 miles per gallon

• 28 miles per gallon

• 18 miles per gallon

What is the line of best fit used for in the dog height and weight activity?

• To calculate the total weight of all dogs

• To find the tallest dog

• To predict a dog's weight based on its height

• To determine the average height of dogs

If a dog is 27 inches tall, what weight does the line of best fit predict?

• 70 pounds

• 80 pounds

• 100 pounds

• 90 pounds

What is an outlier in the context of scatter plots?

• A point that fits perfectly on the trend line

• A point that is far from the trend line

• A point that is the average of all data points

• A point that is the median of the dataset

What is the predicted weight for a dog that is 30 inches tall?

• 85 pounds

• 90 pounds

• 93 pounds

• 100 pounds