Scatterplots, Trend Lines, & Predictions

Identify the association of the scatter plot shown.

• Positive

• Negative

• No Association

• Undefined

Tags

CCSS.HSS.ID.B.5

Identify the association of the scatter plot shown.

• Linear

• Non-Linear

• No Association

• Undefined

Tags

CCSS.HSS.ID.B.5

Identify the outlier of the scatter plot shown.

Tags

CCSS.HSF.BF.A.2

Use the trend line to predict the score a student will likely earn on their History test if they spend 30 minutes studying.

• 5%

• 60%

• 70%

Tags

CCSS.HSF.BF.A.2

Use the trend line to predict the amount of time a student should plan to study if their goal is to earn a score of 80% on their History test.

• 36 minutes

• 42 minutes

• 48 minutes

• Who studies for tests?

The scatter plot shown represents the outside low temperature in degrees Fahrenheit and the number of hot chocolates sold at a concession stand during a football season. What does the y-intercept for the equation of the line of best fit represent in the context of the situation?

• The temperature when 0 hot chocolates are sold.

• The number of hot chocolates sold on a day with a low of 0 degrees Fahrenheit.

• The change in the number of hot chocolates sold per degree.

• The change in the degrees per hot chocolate sold.

Tags

CCSS.HSF.LE.B.5

The scatter plot shown represents the outside low temperature in degrees Fahrenheit and the number of hot chocolates sold at a concession stand during a football season. What does the slope for the equation of the line of best fit represent in the context of the situation?

• The temperature when 0 hot chocolates are sold.

• The number of hot chocolates sold on a day with a low of 0 degrees Fahrenheit.

• The change in the number of hot chocolates sold per degree.

• The change in the degrees per hot chocolate sold.

Tags

CCSS.HSF.LE.B.5

What is the BEST equation to match the line of best fit?

y == (a)   x +​ ​ (b)  

• -5
• 380
• 10
• 360
• -20
• 400
• 1
• -1

Tags

CCSS.HSF.LE.B.5

Use the equation y=-5x+380 to determine how many hot chocolates they can expect to sell at the concession stand on a day with a low temperature of 45 degrees Fahrenheit.

x = Low Temperature (degrees Fahrenheit)

y = Number of Hot Chocolates Sold

• 155 hot chocolates

• 125 hot chocolates

• 275 hot chocolates

• 67 hot chocolates

Tags

CCSS.HSF.LE.B.5

Use the equation y=-5x+380 to determine what the low temperature will likely be on a day where 100 hot chocolates are sold.

x = Low Temperature (degrees Fahrenheit)

y = Number of Hot Chocolates Sold

Tags

CCSS.8.EE.C.8C