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

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Expert answered|benki.luv|Points 23|

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Asked 4/8/2014 7:17:28 PM

Updated 4/24/2014 9:55:58 PM

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Confirmed by debnjerry [4/24/2014 9:55:58 PM]

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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.

Added 4/8/2014 8:03:12 PM

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Flagged by debnjerry [4/24/2014 9:56:00 PM]

Evaluate the expression. Choose the best answer.
6P2
A. 360
B. 65
C. 120
D. 30

Question|Asked by romney69

Updated 4/8/2014 7:47:20 PM

1 Answer/Comment

6P2

(6!)/(6-2)!

=30

(6!)/(6-2)!

=30

Added 4/8/2014 7:47:20 PM

This answer has been confirmed as correct and helpful.

Evaluate this expression. Choose the best answer.
5!
A. 220
B. 120
C. 720
D. 820

Question|Asked by romney69

Not Answered

Updated 4/8/2014 7:46:04 PM

1 Answer/Comment

Exit
Evaluate this expression. Choose the best answer.
9!
A. 5,040
B. 362,880
C. 326,880
D. 40,320

Question|Asked by romney69

Updated 4/8/2014 9:19:07 PM

1 Answer/Comment

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)

Question|Asked by romney69

Not Answered

Updated 4/26/2014 12:58:01 AM

1 Answer/Comment

Evaluate this expression 5! : 5*4*3*2*1=120

Added 4/26/2014 12:58:01 AM

This answer has been confirmed as correct and helpful.

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.
**Weegy:** A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn at random. The probability of first drawing a blue marble and then, without replacing it, drawing a red marble is 3/38. 5/20*6/19 = 30/380 = 3/38 **User:**
A bag contains 16 red marbles and 10 blue marbles. If two marbles are chosen at random, one at a time and without replacement, what is the probability of getting two red marbles?
A.
B.
C.
D.
**Weegy:** A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn at random. The probability of first drawing a blue marble and then, without replacing it, drawing a red marble is 3/38. 5/20*6/19 = 30/380 = 3/38 **User:**
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.
**Weegy:** A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two marbles are drawn at random. The probability of first drawing a blue marble and then, without replacing it, drawing a red marble is 3/38. 5/20*6/19 = 30/380 = 3/38 **User:**
A bag contains 10 green marbles and 4 yellow marbles. If two marbles are chosen at random, one at a time and without replacement, what is the probability of getting two green marbles?
A.
B.
C.
D.
**Weegy:** The answer is 2/14 **User:**
Evaluate this expression. Choose the best answer.
7!
A. 840
B. 720
C. 40,320
D. 5,040 **Weegy:** D. 5,040 is the answer. **User:**
Evaluate the expression. Choose the best answer.
A. 360
B. 65
C. 120
D. 30 **Weegy:** Please state the expression or give a link to the picture of the expression. **User:** 6P2 **Weegy:** Please clarify your question so I can help you. **User:** Evaluate the expression. Choose the best answer.
6P2
A. 360
B. 65
C. 120
D. 30 (More)

Question|Asked by romney69

Updated 4/26/2014 1:01:33 AM

1 Answer/Comment

Evaluate the expression 6P2 =6!/(6-2)!=(6*5*4*3*2*1)/(4*3*2*1)=6*5=30

Added 4/26/2014 1:01:33 AM

This answer has been confirmed as correct and helpful.

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

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