Proportion of oil tankers that had spills = (Total tankers - Tankers without spills) / Total tankers
Proportion of oil tankers that had spills = (211 - 146) / 211
Proportion of oil tankers that had spills = 65 / 211
Proportion of oil tankers that had spills ≈ 0.308 (rounded to three decimal places)
An environmentalist wants to find out the fraction of oil tankers that have spills each month.
Step 1 of 2 : Suppose a sample of 211
tankers is drawn. Of these ships, 146
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.
1 answer