Need someone to check if my answers to these probability questions are right :$
Q1: Two jokers are added to a standard 52 card deck. The deck is then shuffled, what is the probability that someone draws 5 cards and two of those 5 cards happen to be both jokers.
is this what you do? 5C3 / 54C5 ?
Q2: 7 members of the swimming club line up for a picture. What is the probability that Marry and Jory will sit together?
is the answer, 12/7! ?
Q3: There is a 15% of winning a game, what are the odds against winning the game?
is the answer, 17:3?
Q4: From a group of 7 juniors and 10 seniors, determine how many communities of 6 students can be chosen if 4 are juniors?
is the answer, (7C4)(10C2) ?
Q1: Two jokers are added to a standard 52 card deck. The deck is then shuffled, what is the probability that someone draws 5 cards and two of those 5 cards happen to be both jokers.
is this what you do? 5C3 / 54C5 ?
Q2: 7 members of the swimming club line up for a picture. What is the probability that Marry and Jory will sit together?
is the answer, 12/7! ?
Q3: There is a 15% of winning a game, what are the odds against winning the game?
is the answer, 17:3?
Q4: From a group of 7 juniors and 10 seniors, determine how many communities of 6 students can be chosen if 4 are juniors?
is the answer, (7C4)(10C2) ?