A pen packets contains defective pens, the exact number of which is not known. a samle of 500 from the packets gives 80 defective pens. find the limit for the proportion for the 0 defective pen in the packet.

# Proportion of defective pens

**puliajay**#2

It is given that for 500 pens there are 80 defective pens

According to that , there are 16% of the pens must be defective

so, for 6 pens the defective pens are 0.8

since pens canâ€™t be decimal they are integers.

So, for 6 pens there cannot be any defective pens