Linear Regression

Front

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

Back

y = 1.5x + 12

Front

A person travels by car. They record their miles driven in a data table. Calculate the linear regression equation of this data.

Back

y = 61.93x - 1.79

Front

The annual profits for a company are given in the following table, where x represents the number of years since 1992, and y represents the profit in thousands of dollars. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest hundredth. Using this equation, estimate the year in which the profits would reach 378 thousand dollars.

Back

2003

Front

Write the linear regression equation for the given data (x: years since 1994, y: number of new cases). Use the equation to find the projected number of new cases for 2003, rounded to the nearest whole number.

Back

974

Front

Which scatter plot shows no relationship?

Back

Graph D

Front

What is the line of best fit?

Back

f(x)= 1.82x + 5.02

Front

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

Back

59.76

Front

Using linear regression, find the equation of best fit for starting salaries for health care workers since the year 2000. Round decimals to 3 places.

Back

y = 839.721x + 27541.812

Front

Back

2,620

Front

Write the equation for the table given.

Back

y = 3x