Nine people try out for nine positions on a baseball team. The positions are filled by selecting players at random. Assume that all players are equally qualified for any position.
a) In how many ways can the positions be filled?
b) What is the probability that Duffy will be the pitcher?
c) What is the probability that David, George, or Duffy will play first base?
d) What is the probability that David, George, or Duffy will play first base and Eleanor or Georgina will be pitcher?
2007-12-13 12:27:05 · 8 answers · asked by (: Muffin Man :) 2 in Science & Mathematics ➔ Mathematics
Im not sure about the last one but i am very sure about A
A) 362,880 total ways
B) 1 out of 9
C) one out of three
D) ?
2007-12-13 12:36:48 · answer #1 · answered by Jesi 2 · 1⤊ 0⤋
You have got way too much time on your hands. Maybe you should fill some of it by reading your books and be able to develop the answer yoursels. By the answers are actually relatively simple. About ten min. of reading should give it to you. Only answer D gets a little complicated because it really gets into probability and permutations ( something your book explains).pp
2007-12-13 20:32:52 · answer #2 · answered by ttpawpaw 7 · 1⤊ 0⤋
a) 9 * 9= 81
b) 1 out of 9
c) For or (use *)
1/9 * 1/9 * 1/9 = 1/27
d) For and (use +)
1/27(from part (c) + (1/9 * 1/9) = 5/54
Well, i am guessing also. Haha
2007-12-13 20:40:28 · answer #3 · answered by dustbin 1 · 0⤊ 2⤋
a) 362,880 (9 factorial)
b) 1/9
c) 1/3
d) I'm gonna guess 2/27, but it might not be right.
2007-12-13 20:43:21 · answer #4 · answered by Chris 3 · 0⤊ 0⤋
a 9 *9 = 81
b 1 out of 9
c 3 out of 9
d idk
2007-12-13 20:32:30 · answer #5 · answered by Anonymous · 0⤊ 2⤋
iidk whatever
2007-12-13 20:35:33 · answer #6 · answered by Anonymous · 0⤊ 2⤋
psh..idk lol
2007-12-13 20:30:00 · answer #7 · answered by Sasha B 1 · 0⤊ 2⤋
a) 81
b)10%
c)10%
d)10%
but i suck at math so idk.
2007-12-13 20:32:36 · answer #8 · answered by Anonymous · 0⤊ 2⤋