If the failure rate of TVs is 13.3%, how many would be expected not to fail when 1,500 TV's go to market?

Question

If the failure rate of TVs is 13.3%, how many would be expected not to fail when 1,500 TV's go to market?

Answer 1

Hi Eryn.

 

If 1500 tvs are going to market and 13.3% of them fail, that means that 1500*.133 = 199.5 TVs WILL FAIL.

 

So (1500 - 199.5) is the number of TVs that will NOT FAIL.  And since you never buy half of a tv, will have to round.

 

I would round down, in case that half of a TV does end up failing.  I would answer 1300 TVs will not fail.