A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn at random, one at a time and without replacement. What is the probability of selecting two red marbles? A. B. C. D.
A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn at random, one at a time and without replacement. the probability of selecting two red marbles is(6/20)(5/19)=3/38
s
Question
Updated 4/24/2014 9:55:58 PM
Confirmed by debnjerry [4/24/2014 9:55:58 PM]
Rating
5
You have 20 marbles in total. The probability to draw a blue marble is 5/20 = 1/4 = 0.25. The probability to draw a red marble is 6/20 = 0.3. The probability to draw a green marble is 9/20 = 0.45. If two marbles are drawn at random without replacement and one at a time, then the probability that one is red and another is blue is 0.25x0.3 = 0.075. The probability for blue and green is 0.25x0.45 = 0.1125. The probability for red and green is 0.3x0.45=0.135.
This answer has been flagged as incorrect.
Flagged by debnjerry [4/24/2014 9:56:00 PM]

Questions asked by the same visitor
Evaluate the expression. Choose the best answer. 6P2 A. 360 B. 65 C. 120 D. 30
Updated 4/8/2014 7:47:20 PM
6P2
(6!)/(6-2)!
=30
Evaluate this expression. Choose the best answer. 5! A. 220 B. 120 C. 720 D. 820
Updated 4/8/2014 7:46:04 PM
5! = 120

5 x 4 x 3 x 2 x 1 = 120
Confirmed by jeifunk [4/8/2014 7:47:47 PM]
Exit Evaluate this expression. Choose the best answer. 9! A. 5,040 B. 362,880 C. 326,880 D. 40,320
Updated 4/8/2014 9:19:07 PM
9! = 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 362,880
Confirmed by jeifunk [4/8/2014 9:28:42 PM]
A college questionnaire was distributed among high school students asking each student to rank the items he or she would like to learn more about. There are five items: financial aid, tuition, class schedule, dormitories, and cost of books. In how many ways can a student answer this questionnaire? A. 720 ways B. 25 ways C. 120 ways D. 5,040 ways
Weegy: There are C. 720 different orders in which the questionnaire may be answered. User: Evaluate this expression. Choose the best answer. 5! A. 220 B. 120 C. 720 D. 820 (More)
Updated 4/26/2014 12:58:01 AM
Evaluate this expression 5! : 5*4*3*2*1=120
Rated good by benki.luv, Rated good by andrewpallarca, Confirmed by andrewpallarca [4/26/2014 1:13:04 AM]
A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn at random, one at a time. What is the probability of selecting a green marble and then, without replacing it, a red marble? A. B. C. D.
Updated 4/26/2014 1:01:33 AM
Evaluate the expression 6P2 =6!/(6-2)!=(6*5*4*3*2*1)/(4*3*2*1)=6*5=30

Rated good by benki.luv, Confirmed by andrewpallarca [4/26/2014 1:12:47 AM], Rated good by andrewpallarca
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