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An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step1of2: Suppose a sample of 438 tankers is drawn.

An environmentalist wants to find out the fraction of oil tankers that have spills each month.

Step1of2:

Suppose a sample of 438 tankers is drawn. Of these ships, 311 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.

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