There are 119 electricians listed in the yellow pages of the phone book. If a customer selects an electrician at random, what is the probability that Andy (an electrician) will be selected? What is the probability as a percent? Round to the nearest tenth of a percent.

Question

unklerhaukus · Answer

The probability of an certain possibility, is the number favoured possibilities divided by the total number of possibilities .

anonymous · Answer

I don't really understand...

unklerhaukus · Answer

say i rolled a dice and was hoping to roll a three or four .

the dice has six faces so there are 6 possibilities,

i only want a three or four so there are 2 favoured possibilities 


the probability of being successful is    $$2/6 =1/3\approx33.3\%$$

anonymous · Answer

So I would divide 119 by 1?

unklerhaukus · Answer

almost , it's the other way around