• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

Probability Q (1 Viewer)

OL_O

New Member
Joined
Nov 14, 2014
Messages
22
Gender
Undisclosed
HSC
N/A
a die is rolled twice and the numbers rolled are added together. A is the event "the sum is 4 or more" B is the event "the sum is less than 6" & C is the event "the 2 numbers rolled are the same"
Find:
i) P(A & B)
 

VBN2470

Well-Known Member
Joined
Mar 13, 2012
Messages
440
Location
Sydney
Gender
Male
HSC
2013
Uni Grad
2017
The event denotes the event that the sum is 4 or more but is less than 6 i.e the sum can only be 4 or 5. This happens only when you land (1,3), (2,2), (3,1), (1,4) (2,3), (3,2), (4,1). Hence, .
 

OL_O

New Member
Joined
Nov 14, 2014
Messages
22
Gender
Undisclosed
HSC
N/A
The event denotes the event that the sum is 4 or more but is less than 6 i.e the sum can only be 4 or 5. This happens only when you land (1,3), (2,2), (3,1), (1,4) (2,3), (3,2), (4,1). Hence, .
oh ok i see what i did wrong
Thank you
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top