Scatter Plot, Best Fit and Two Way Table

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

How many students were surveyed in the "Biking to School" two-way table?

• 16

• 14

• 11

• 30

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

You are analyzing a scatter plot that has a negative association. What is true about the x and y values?

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases

Out of all the people who like chocolate, what is the relative frequency for selecting a teen?

• 0.11

• 0.27

• 0.16

• 0.06

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

Which statements correctly describe this relationship?

• The relationship between the variables are linear, positive correlation, and line of best fit does go through the origin.

• The relationship is nonlinear, positive correlation, and line of best fit goes through the origin.

• There is no relationship between the variables.

• The relationship between the variables are linear, negative correlation, and line of best fit is negative.

The number of miles Sally walks varies according to the day of the week, as shown in the scatter plot below.

Based on the information in the scatter plot, which statement is true?

• The number of miles increases until Thursday and then decreases until Friday.

• The number of miles decreases until Thursday and then increases until Friday.

• The number of miles consistently increases Monday through Friday.

• The number of miles consistently decreases Monday through Friday.

What type of correlation does this scatter plot have?

• positive

• negative

• none

• all of the above

The two–way frequency table below shows the number of customers who bought fruit that was either fresh or frozen at the grocery store. Select ALL that apply.

• Customers who bought oranges tended to pick fresh oranges.

• Customers who bought apples tended to pick frozen apples.

• Customers who bought fruit tended to pick frozen fruits.

• Customers who bought strawberries tended to pick fresh strawberries.