A company finds 8 bags with faulty zippers in a sample of 500. Predict how many bags with faulty zippers are in a shipment of 20,000.

A: 320 bags
B: 360 bags **
C: 400 bags

In a survey of 50 randomly selected families at the zoo, 15 families chose the polar bear exhibit as their favorite. If 2000 families are at the zoo, predict how many like the polar bear exhibit the best.

A: 60 families
B: 400 families**
C: 600 families

The probability of having a winning raffle ticket is 15%. If you bought 40 tickets, how many winning tickets should you expect to have?

A: 3 tickets
B: 6 tickets **
C: 15 tickets


A manufacturer fins that 10% of the flashlights in a sample are defective. Predict how many defective flashlights there will be in a shipment of 4000 flashlights.

A: 4
B: 40
C: 400**

Answers

Answered by bobpursley
two right, two wrong.
Which two are wrong?
Answered by PsyDAG
1) 8/500 = x/20,000

2) 15/50 = x/2000
1 = A
2 = C
Answered by PsyDAG
you got it!
Thank you very much
Answered by PsyDAG
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