Question

The table shows the diameters in volume certain balls used for different sports. A bowling ball has an approximate volume of 5200 cm³ what is the best estimate for the diameter of a bowling ball

Answer 1

From the table, the value V = 5200 cm³ is between x = 21 cm and x = 22 cm.

Computing the average of the volumes associated to these x-values, we get:

V = (4,849.1 + 5,575.3)/2

V = 5212.2

which is near V = 5200 cm³. Then, the x-value related to V = 5200 cm³ is approximately the average between x = 21 and x = 22, that is:

x = (21 + 22)/2

x = 21.5 cm