Finite Review

Which scatter plot shows no relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Residuals are . . . 

• possible models not explored by the researcher
• variation in the response variable that is explained by the model
• the difference between the observed response and the values predicted by the model
• data collected from individuals that is not consistent with the rest of the group

I predicted someone would score a 78% on their test, but they actually scored an 81%. What's the residual?

• 81 - 78 = 3

• 78 - 81 = -3

• What's residual?

Tags

CCSS.8.EE.C.8C

If the line of best fit is y = 2x + 8 where x represents the size of hand and y represents the number of starbursts one can grab. How many starbursts do we predict someone with a hand size of 8 inches can grab?

• 8

• 16

• 22

• 24

The line of best fit is y = 2x + 8 where x represents the size of hand and y represents the number of starbursts. If someone with a hand size of 8 in actually grabbed 20 starbursts, what is the residual?

• 20

• 4

• -4

• 8

Tags

CCSS.8.EE.C.8C

Estimate the correlation coefficient for this scatterplot.

• A) r = -0.9

• B) r = 1

• C) r = 0.9

• D) r = -1

What type of correlation exists between the number of people that go to the pool and the temperature outside.

• positive
• negative
• no correlation
• unknown

As study time _______________, errors _______________.

• increases ; decrease
• increases ; increase
• decreases; decrease
• increases ; stays the same

Tags

CCSS.L.3.1F

Which of the following is the equation for figuring out PROFIT?

• Profit = Revenue - Cost
• Profit = Cost - Revenue
• Revenue = Profit - Cost
• Costs = Profit - Revenue

Tags

CCSS.HSA.CED.A.4

Kelly makes and sells quilted blankets out of her home. She charges $50 per blanket.  For each blanket she makes, she must spend $1 on thread, $2 in electricity and $12 on cloth.  What is Kelly's total REVENUE?

• $50x

• $1x

• $2x

• $12x

Tags

CCSS.HSA-SSE.A.1A