A community group sells 2,000 tickets for its raffle. The grand prize is a car. Neil and his 9 friends buy 10 tickets each. When the winning ticket number is announced, it is found to belong to Neil's group. Given this information, what is the probability that the ticket belongs to Neil?

Question

anonymous · Answer

@amistre64

amistre64 · Answer

your thoughts?

taylor0402 · Answer

you need to find P(Neil |  Neil's group)

taylor0402 · Answer

since you're given that the ticket belongs to Neil's group, 
u can forget about everything else. Look at Neil's group only

anonymous · Answer

well they buy a total of 100 tickets so 100/2000 or 1/20.. right?

taylor0402 · Answer

number favorable =  1
total  =  10

so probability =???

amistre64 · Answer

spose we just put neils group in a room, that means that our of 100 tickets, one is the winner

neil has how many of those tickets?

taylor0402 · Answer

number favorable =  1
total  =  10

so probability = 1/10

anonymous · Answer

10, so 10/100 = 1 as taylor said, or 1/10

amistre64 · Answer

right, each ticket is has a probability of 1/100 and he has 10 of them ... 10*1/100 if you will

anonymous · Answer

alright

anonymous · Answer

Thanks @Taylor0402  @amistre64

amistre64 · Answer

good luck :)

taylor0402 · Answer

no problem