• Best of luck to the class of 2024 for their HSC exams. You got this!
    Let us know your thoughts on the HSC exams here
  • YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page
MedVision ad

maths probability question (1 Viewer)

princesspiggy

New Member
Joined
Nov 1, 2023
Messages
6
Gender
Female
HSC
2025
could someone please explain to me why the answer is b? i thought you would find the proability that it would be the same and subtract from 1, so 1-(13/52 x 12/51 x 4) = 13/17
1726046710726.png
 

Demons

Goated Member
Joined
Aug 21, 2023
Messages
238
Gender
Male
HSC
2024
could someone please explain to me why the answer is b? i thought you would find the proability that it would be the same and subtract from 1, so 1-(13/52 x 12/51 x 4) = 13/17
View attachment 44183
Considering the answer you got, it is still correct, as 13/17 is the simplified version of 39/51, so all you had to do was reverse simplify it and you would have gotten 39/51 which is the answer. You were just missing one step from getting the correct answer!
 

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

Top