combinatorics probability question about cards (1 Viewer)

[waltssillyhat]

I see ur confusion
1. No its not for the suits bc then you’re eliminating an option it should be 4C1 but 4C3 is the same due to pascal’s triangle
2. it‘s meant to be 13C3 instead of 13C1 bc you’re choosing 3 from 13: there was a typo
3. Total is 52C3
4. 4x13C3/52C3 = 22/425
5. The answer provided is incorrect

ohhh okay thank you sm!!!! we haven't covered pascal's triangle at my school yet

 

[NotBamboo]

this question is part of a 'using counting in probability' part of my textbook and i'm stuck on part (d). i tried working it out, but my answers are different from the textbook's (which is 1/425). any help would be appreciated <3
View attachment 47762

52/52 * 12/51 * 11/50
= 22/425

rip