A quality supervisor for a factory that manufactures electrical wires examines a sample of 32 wires. He finds that 4 of the wires are too thick. Which is the best prediction of the number of wires that will be too thick in a shipment of 2,000 wires?

125
128
250
324

Question

A quality supervisor for a factory that manufactures electrical wires examines a sample of 32 wires. He finds that 4 of the wires are too thick. Which is the best prediction of the number of wires that will be too thick in a shipment of 2,000 wires?      

125
128
250
324

nathan917 · Answer

@amistre64 

I Got 250

nathan917 · Answer

1 of every 8 you will get a bad wire.

amistre64 · Answer

thats a good way of thinking about it

4 out of 32 = 1 out of 8

how many sets of 8 are in 2000?

8n = 2000
  n = 2000/8
  n = 250