Unit 6 Review

What type of association do the variables in the scatter plot appear to have: positive, negative, or no association?

Tags

CCSS.HSS.ID.B.5

Select all the relationships where it would be reasonable to expect a positive association:

• The number of cups in a stack and the height of the stack

• A person’s age in years and total number of toes

• A person’s height and how far they can jump

• Outside air temperature and the number of cups of hot chocolate sold

• The hours a person sleeps and the hours a person is awake each day

Tags

CCSS.HSS.ID.B.5

The graph shows a scatter plot with a line of fit. Use the line of fit to estimate the time for a run distance of 12 kilometers.

• 39

• 0

• 2

• 49

Tags

CCSS.8.EE.B.5

The frequency table shows data from the food stands at a basketball game and a baseball game. What is the percent for basketball and hot dog?

What type of association is this? The distance traveling in a car and the amount of gas in your car.

Tags

CCSS.HSF-LE.A.1B

A survey asked 110 student athletes if they wore lucky socks while playing a basketball game. Based on the data shown, what type of association is there between wearing lucky socks and winning: positive, negative, or no association?

• Positive

• Negative

• No association

Tags

CCSS.8.SP.A.4

The linear model for a set of data is given by the equation y = 0.25x + 8. Use this model to predict the value of y when x is 11.

Tags

CCSS.8.EE.B.5

What is the y-intercept?

• About 30

• About 14

• About 37

• About 50

Tags

CCSS.HSF.LE.B.5

Which graph matches this relative frequency table?

• Graph A

• Graph B

• Graph C

• Graph D

Tags

CCSS.8.SP.A.4

A group of 8th grade students were asked if they have a curfew and if they have chores. How many total students were surveyed?

• 350

• 170

• 180

Tags

CCSS.8.SP.A.4