Question

A factory produces 1000 bottles of pasta sauce in a day. Fifty bottles are selected at random to determine whether they weigh the correct amount. The factory rejects bottles that are over or under the correct weight. One bottle is underweight, 46 bottles are the correct weight, and 3 bottles are overweight. Based on this random sample, approximately how many bottles will the factory reject from the day's production? 4 20 60 80

Answer 1

80 Bottles will be rejected

Explanation:

I'm not sure how to explain but it just makes sense to me.

Answer 2

Approximately 80 bottles will the factory reject. In the sample of the 50 bottles, one bottle is underweight, three are overweight, so 3+1=4 bottles are not the correct weight and will be rejected. Four out of fifty would be rejected, or one out of 12.5. Therefore, approximately 1000*1/12.5=80 bottles will be rejected.