Question

What are the odds against getting a sum of 5 when rolling a pair of dice?

Answer 1

draw out all the possible case, use complemenaty even

Answer 2

event

Answer 3

draw up a table , 6 x 6

and list 1,2,3,4,5,6 on the rows and columns of the table

Answer 4

6 in 36

Answer 5

then find all the possible sums

Answer 6

okk.. 6?

Answer 7

wrong

Answer 8

fairly sure its 4/36

Answer 9

if you draw up a table

Answer 10

ok! because it cant be 5 by itself, so that eliminates 2 options, so it is 4.

Answer 11

1+4, 2+3, 3+2, 4+1. 4 sorry, there are no zeros

Answer 12

draw up a table :|

Answer 13

i did

Answer 14

chances of sum of 5 is 4/36 = 1/9

therefore chances of not getting a sum of 5 is 8/9

the complementary event

Answer 15

thank you!