Help thanks.A survey of 100 households that own televisions found that 95 use a remote control. If you randomly knocked on two doors (from the sample of 100 households), what is the probability that the first homeowner would use a remote control and the second homeowner would not?

Question

Help thanks.A survey of 100 households that own televisions found that 95 use a remote control.  If you randomly knocked on two doors (from the sample of 100 households), what is the probability that the first homeowner would use a remote control and the second homeowner would not?

anonymous · Answer

Prob of first using remote = 95/100
Prob of secnd not using = 5/99

Overall prob = (95/100)(5/99)
95*5/100*99

=19/396

anonymous · Answer

thank you