Question

You roll two fair die, a white one and a green one. Find P( at least one of the die lands on 5).

Answer 1

well how many sides are on 1 die x 2 and find out the ratio of 1 landing on 5

Answer 2

I think that is right

Answer 3

yep i think you are right

Answer 4

First write all the sample space:
{ (1,1) (1,2) (1,3) (1,4) (1,5) (1,6)
(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)
(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)
(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)
(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)
(6,1) (6,2) (6,3) (6,4) (6,5) (6,6) }

Answer 5

@rajee_sam could you write any more lol

Answer 6

but i thought P(at least one)= 1-P(none) so then what would you do ?

Answer 7

he sample space denotes (first die roll , second die roll). In this sample space see how many possibilities are there atleast one five. There are 11 possibilities. So Probability of getting atleast 1 five is 11/36

Answer 8

thank you!