Question

An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 1 of 2 : Suppose a sample of 563 tankers is drawn. Of these ships, 445 did not have spills. Using the data, estimate the proportion of oil tankers that had spills. Enter your answer as a fraction or a decimal number rounded to three decimal places.

Answer 1

The proportion of oil tankers that had spills is:

1 - (445/563) = 0.208

Rounded to three decimal places, the answer is 0.208. Alternatively, this can be expressed as the fraction 52/253.