Data Management Probability Questions

Question

1. The following letters are rearranged BROWN. What is the probability that the BRO are together and in this order

2.Aliens landed on Costco to buy some groceries and donate blood. The American president is sending an 8-member committee team of scientists to investigate this. His choices include 7 Biologists, 10 Chemists, 3 Physicists, and 4 Linguists. What is the probability that the team he selects consist:

a) All Biologists?

b) At least 2 Linguists?

c) Three times as many Chemists as there are Biologists?

*For a what I was thinking, since there are only 7 biologists, would that mean the 7 biologists are chosen and 1 other person is chosen from the rest or it is not possible because it is only possible for 7 biologists not 8

3.The first four games of a World Series are played between the Blue Jays and the Phillies who are evenly matched. Using a tree diagram, find the probability that

a)The Phillies win the series four straight

b)The Blue Jays win three of the first four games

c)The Blue Jays win the opener (first-game) of the series.

*For c, is it if Blue Jays win only the first game or they win the other games including the first one?

Answer 1

I was extremely distracted during answer 3, so please note that the final answer to part b is 1/4! Even though I may have said 1/6 and written 1/16. Sorry about that!!!