The following table from the World Health Organization shows the cumulative number of severe acute respiratory syndrome (SARS) cases reported on certain dates in 2003: Use extrapolation to estimate the number of cases reported on April 18.
A)3462
B)3507
C)3598
D)3538

Question

The following table from the World Health Organization shows the cumulative number of severe acute respiratory syndrome (SARS) cases reported on certain dates in 2003:  Use extrapolation to estimate the number of cases reported on April 18.
A)3462 
B)3507 
C)3598 
D)3538

Quizplus · Accepted Answer

To estimate the number of cases reported on April 18, we can draw a line of best fit through the data points given in the table and use it to extrapolate the value for April 18. Using this method, we can see that the line of best fit passes through the point (April 13, 3517), which means that on April 13, there were approximately 3517 reported cases. Extrapolating along the line, we can estimate that on April 18, there were approximately 3507 reported cases. Therefore, the best choice is B.

The Following Table from the World Health Organization Shows the Cumulative