when a sample was surveyed on the preference of yogurt, 12 said vanilla and 8 said banana, the total group was 160,what is the probability that a person prefers vanilla [12 or 60 or 40 or 100%?
2006-07-30 06:56:56 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
On the yogurt question, probability is always a number between 0 and 1 inclusive, therefore it can't be 12, 60, or 40 and we know that 100% of the people will not like vanilla so the answer is not there. If your total sample is the 12 vanilla and the 8 banana, that would make your sample 20 so 12/20 prefer vanilla. You then multiply 12/20 by the total group of 160 and 96 should prefer vanilla.
2006-07-30 12:00:21 · answer #1 · answered by MollyMAM 6 · 0⤊ 0⤋
a million. 3/40 = x/one hundred 30=4x -4x=-30 x = 30/4 or 7 2/4 or lowest term 7 a million/2 2. x/40 5 = 15 x=675 3. 4x + sixteen = 28 4x = 28 - sixteen 4x = 12 x = 3 4. 9 - 2x = 15 -2x = 15 - 9 -2x = 6 x = -3 im so very specific with my solutions!
2016-12-10 18:20:27 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Proportion Problem
3/40 = x/100
Multiply the means then multiply the extremes
40x =300
40x/40 = 300/40
Divide 40 from both sides
x = 7.5
the answer is x = 7.5
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
9-2x = 15
- 9 - 9
Subtract - 9 from both sides
-2x = 6
-2x/- 2 = 6/-2
Divide - 2 fro, both sides
x = -3
2006-07-30 07:17:42 · answer #3 · answered by SAMUEL D 7 · 0⤊ 0⤋
the first answer for 3/40+x/100 x=7.5
2006-07-30 08:38:02 · answer #4 · answered by claironet01 2 · 0⤊ 0⤋
42.
2006-07-30 06:59:55 · answer #5 · answered by · 5 · 0⤊ 0⤋
Doesn't anyone do their own homework anymore?
2006-07-30 07:00:26 · answer #6 · answered by Amy H 3 · 0⤊ 0⤋
TY AMY...Do your own homework.hahahaha
2006-07-30 07:02:00 · answer #7 · answered by sweet_thing_kay04 6 · 0⤊ 0⤋
just use a CALCULATER GO TO START RUN CALC
2006-08-03 03:59:04 · answer #8 · answered by samantha.sss 3 · 0⤊ 0⤋
go do u homework!!!!!!
2006-07-30 07:28:41 · answer #9 · answered by brainstormer 4 · 0⤊ 0⤋