how to put rand syntax in a matrix operation?

cellular=1:100

resource=[1 8;2 12;3 7;4 18;5 17]

ROM = [cellular(1:size(resource,1)).', sortrows(resource, 2)];

ROM = ROM(ROM

(:, end) > 5, :)

what changes i have to do,,if i want "cellular value choose the resource column2 value with >5 randomly(but onle column2 value can be choosed by cellular value max 5 times)nd after choosing display will be like :--

1 column:-cellular value column

2nd column:--resource column1

3rd column:--resource 2nd column