@ElonaSushchik

A battery manufacturer randomly tests 500 batteries and finds that 3 are defective.

How many defective batteries would be expected in a shipment of 12,000 batteries?

A.
120

B.
72

C.
60

D.
36

Question

@ElonaSushchik

A battery manufacturer randomly tests 500 batteries and finds that 3 are defective. 


How many defective batteries would be expected in a shipment of 12,000 batteries?
 
 A.
120
 
 B.
72
 
 C.
60
 
 D.
36

anonymous · Answer

set up a ratio
ever 3 per 500 is defective
so 3/500

anonymous · Answer

now we have 1200 so|dw:1428613677478:dw|