A bag contains 2 red, 5 blue, and 9 white chips. What is the probability of drawing a red or blue chip ? lowest terms
a. 5/128
b. 10/256
c. 7/16
d. 10/16
2006-06-08 12:43:29 · 10 answers · asked by sierratireshop@sbcglobal.net 1 in Science & Mathematics ➔ Mathematics
C
please give me the best answer scinse i got it first
2006-06-08 12:46:28 · answer #1 · answered by sealion 2 · 0⤊ 1⤋
probability is the number of "desired outcomes" (results that answer the question) divided by the total number of possible outcomes
A red or a blue is what you're looking for, so the number of desired outcomes is 2 (no of red) + 5 (no of blue) = 7. Any of those 7 chips gives you what you want.
Total outcomes is just the total number of chips--any one of them could be drawn. 2 + 5 + 9 = 16.
So the answer is 7/16, c
2006-06-08 19:48:57 · answer #2 · answered by Goddess of Grammar 7 · 0⤊ 0⤋
"C"
1st add all the chips you will get 16
so you can eliminate choices "A and B"
then you asked probability of red and bluechip so, add 5+2 = 7
so, 7/16 - "C"
2006-06-09 18:16:42 · answer #3 · answered by kelly 2 · 0⤊ 0⤋
c. because p(red) = #red/total number of balls= 2/16
p(blue) = #blue/total number of balls = 5/16
add them because of the word "or" therefore = 2/16+5/16 = 7/16
2006-06-15 13:33:03 · answer #4 · answered by 98#$%7 2 · 0⤊ 0⤋
Its guys like you who go to college and become surgeons and leave your scalpels and scissors in patients.
2006-06-08 19:47:59 · answer #5 · answered by will 4 · 0⤊ 0⤋
c
2006-06-08 19:46:30 · answer #6 · answered by reality_check 3 · 0⤊ 0⤋
do you own homework
2006-06-08 19:46:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋
C
2006-06-08 20:30:18 · answer #8 · answered by the Politics of Pikachu 7 · 0⤊ 0⤋
C
2006-06-08 19:47:25 · answer #9 · answered by Pearl 2 · 0⤊ 0⤋
c.
2006-06-08 19:55:12 · answer #10 · answered by Anonymous · 0⤊ 0⤋