Rolling a Die

If we have a 5-sided die (labeled 1-5 on all sides) and roll it 4 times, what is the probability that we see a 1 and a 2 at least once? What about if we have an N-sided die? What about if we roll it R times?

Probability Statistics Word Problem
Abd Tqd Abd Tqd
195
Report
Join Matchmaticians Affiliate Marketing Program to earn up to a 50% commission on every question that your affiliated users ask or answer.