Question

Permutation/combination question. Explain please. :)

Answer 1

for each subject, there are two ways it can occur. either the student writes check, or leaves it blank

Answer 2

That's right :)

Answer 3

not sure how to crunch those numbers though

Answer 4

so each subject has 2 ways it can occur

Answer 5

so you have , by multiplication principle
2 x 2 x 2 ...
2^8 choices, since there are 8 subjects

Answer 6

oh! this is simply solving using the FCP! so simple... thanks perl! :)