Question: 1a box contains 8 marbles 4 red 2 green and...
1.A box contains 8 marbles. 4 red, 2 green and 2 blue marbles. If you select two marbles, without replacement, what is the probability of selecting a red marble followed by a blue marble?
2.A new drug is found to cause adverse reactions 3% of the time. If 5 people are chosen at random to test the drug, what is the probability that none of the 5 patients will experience any adverse reactions. [Give answer to 4 decimal places].
both need working out thanks