Question

A chocolate company selects 30 random packages to check their weight. They 3 packages that have an incorrect weight. How many packages out of 3000 should the company predict have incorrect weight?

Answer 1

300

Explanation:

so the likelyhood of an incorrectly weighted job is 3/30 which, when simplified, is 1 in 10. you then extrapolate that data to 3000, and 3000/10 is 300.