question 27 (3 Viewers)

[AshleaSK]

But why is it 5/18?

 

[hereSIR]

Only one 6 means (1st die is a 6, 2nd is not a 6) or (1st die not a 6, 2nd die is a 6).
Which gives
P(one 6) = 1/6*5/6 + 5/6*1/6 = 5/18
This would be the same if you drew a tree diagram!

 

[mushi]

Originally posted by KAty
hey mushi and hollie i got the same as you -$0.28
i hope its right every0one is saying something different do u think we did it right
i was pretty confident with this question and it was work 3 marks !

yups, pretty confident..

since our proablitlys add to 1.. 10/36, 1/36, 25/36 = 1

the other ppl dont ..