Question

suppose a sample of 342 tankers is drawn. of these ships, 267 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

`(25)/(114)` or 0.219

Explanation:

No. of tankers drawn= 342

No. of tankers which didn't have spills= 267

No. of tankers which had spills= 342-267

= 75

Proportion of oil tankers that had spills=
`(75)/(342)`

Proportion as fraction=
`(25)/(114)`

Proportion as decimal= 0.219