Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

junior college 2 | H2 Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Joanne
Joanne

junior college 2 chevron_right H2 Maths chevron_right Singapore

Need help with (b)

Date Posted: 3 years ago
Views: 290
Chew Shao Quan
Chew Shao Quan
3 years ago
Think about the scenarios of what x1 and x2 can be when X1 - X2 >= 5.
X must minimally be 2 (1 dot on disc and 1 dot on die) and can only be max 8 (2 dot on disc and 6 dot on die)
Hence, there can only be 3 scenarios which each scenario probability can be find separately.
As each of these scenarios are mutually exclusive, you can then sum them together to get the answer.

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Tham KY
Tham Ky's answer
6052 answers (Tutor Details)
Correct?