M1T3 Review - Linear Regression

Which graph most clearly shows a negative correlation between the x- and y−values?

Which graph most clearly shows a no correlation between the x- and y−values?

Which graph most clearly shows a positive correlation between the x- and y−values?

What does a correlation coefficient of r=−0.01

imply about the graph of a data set? Select all that apply.

Which correlation coefficient is most accurate for this data set?

Determine the linear regression equation for the data set. Use desmos table and the formula  $y_1\sim mx_1+b$  

Determine the correlation coefficient for the data set. Use desmos table and the formula
   $y_1\sim mx_1+b$  

The linear regression equation that best represents the line of best fit for the data is y=20.8x-35. What does the slope represent?

The linear regression equation that best represents the line of best fit for the data is y=20.8x-35. Use the equation to predict the number of bacteria in 24 hours.