Scatterplots & Linear Regression

A linear regression is the same as a line of best fit.

• true
• false

Tags

CCSS.8.SP.A.2

The table shown is comparing a person's foot length to their height in cm. What is the relationship between foot length and height?

• strong; r = .99
• strong; r = .97
• weak; r = .38
• weak; r = .58

Tags

CCSS.HSS.ID.C.8

The table shown is comparing a person's foot length to their height in cm. What might the height of a person be with a foot length of 30 cm?

• 185 cm
• 180 cm
• 190 cm
• 192 cm

Tags

CCSS.HSF.IF.B.4

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57
• f(x) = 5.57x + 25.05
• f(x) = -5.57x + 25.05
• f(x) = 5.57x - 25.05

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.8

What would be the correlation between study time and test grades?

• positive
• negative
• none
• cannot be determined

Tags

CCSS.HSS.ID.C.9

What would the correlation between elevation and temperature?

• none
• cannot be determined
• positive correlation
• negative correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

Using your linear regression, what is y when x is 30?

• 61.59
• 52.46
• 57.94
• 59.76

Tags

CCSS.8.EE.C.8C

What is the line of best fit?

• f(x)= 5x+1.82
• cannot be determined
• f(x)= 1.82x + 5.02
• f(x)= 1.1x + 4.2

Tags

CCSS.8.EE.B.5

What kind of trend is shown from this scatterplot?

• positive correlation
• negative correlation
• none
• cannot be determind

Tags

CCSS.HSS.ID.B.5

Scatterplots show trends in data.

• True
• False

Tags

CCSS.HSF.IF.B.4