How to randomly choose 3 values ​​from the first column.

Hi

How to randomly choose 3 values ​​from the first column when I have various examples.

A=[ 1 0
2 1
0 4
4 3
5 7
3 6
7 3
9 5
9 6
10 7]

Thanks for help ;)

Answer 1

[Bruno Luong]

A(randperm(size(A,1),3),1)