Scatter Plots: Function Models and Correlation

What type of function best fits this scatter plot?

• quadratic

• exponential

• linear

• none of the above

What type of function best fits this scatter plot?

• quadratic

• exponential

• linear

• none of the above

What type of function best fits this scatter plot?

• quadratic

• exponential

• linear

• none of the above

Which function below would be the best fit for this data?

• $f\left(x\right)=-2x+7$
  

• $f\left(x\right)=x^2+8$

• $f\left(x\right)=-2^x$

• $f\left(x\right)=7x-2$

What letter represents the correlation coefficient?

• r

• c

• t

• s

A positive Correlation would be between:

• -1 and 0

• -1 and 1

• 0 and 1

• 1 and 10

What is a good estimate for the correlation factor, r?

• 
  

  $r\approx0.5$

• $r\approx-1$

• $r\approx1$
  

• $r=0$

What type of correlation is seen here?

• Positive correlation

• Negative correlation

• No correlation

What is a good estimate for the correlation coefficient in the scatter plot above? 

•  $r\approx-0.9$  

•  $r\approx1$  

•  $r\approx0$  

•  $r\approx-0.2$  

How many Feline's are Microchipped?

• 58

• 250

• 308

• 167