What does the notation 7C3 represent?
A. the number of ways to choose all but 3 times out of 7, where order doesn't matter
B. the number of ways to choose 3 items out of 7, where order doesn't matter
C. the number of ways to choose all but 3 items out of 7, where order does matter
D. the number of ways to choose 3 numbers out of 7, where order doesnt matter

Question

What does the notation 7C3 represent?
A. the number of ways to choose all but 3 times out of 7, where order doesn't matter
B. the number of ways to choose 3 items out of 7, where order doesn't matter
C. the number of ways to choose all but 3 items out of 7, where order does matter
D. the number of ways to choose 3 numbers out of 7, where order doesnt matter

raden · Answer

it is D

amistre64 · Answer

id of rather it been expressed as:

nCr is the number of ways of choosing r out of n,  but I spose just saying "its D" expressess the same teaching/studying vibe