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May 28, 2015

Search: A bag contains five blue marbles and three red marbles. One marble is drawn at random, What is the probability that the first marble was blue

Number of results: 93,391

math
1.A box contains four red marbles, seven white marbles, and five blue marbles. If one marble is drawn at random, find the probability for each of the following: a.A blue marble is drawn: ______ b.A red or blue marble is drawn: _____ c.Neither a blue or red marble is drawn:
October 9, 2009 by cindy

Math
Could someone please let me know if I did this problem right? A bag contains seven blue marbles and five red marbles. One marble is drawn at random without replacement, and then a second marble is drawn. What is the probability that the second marble is blue if the first ...
August 7, 2009 by B.B.

math214
A box contains four red marbles, seven white marbles and five blue marbles. If one marble is drawn at random, find the probability for each of the following: (a) A blue marble drawn. _____________ (b) A red or a blue marble is drawn. _____________ (c) Neither a red nor a blue ...
March 8, 2010 by alicia

Math, please check work
A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability of choosing a marble that is not blue? 7+2+1=10 There are two blue marbles So is the probability 1/5?
February 21, 2010 by Lyndse

Algebra 2
A bag contains five red marbles and three blue marbles. In how many different ways can two red marbles be drawn if the first marble is not returned to the bag before the second marble is drawn?
February 28, 2012 by Megan

statistics
a jar contains red and blue marbles. two marbles are chosen without replacement. the probability of choosing a red marble and then a blue marble is .26, and the probability of selecting a blue marble first is .43. what is the probability of selecting a red marble on the second...
November 12, 2014 by karen

Math
A bag contains nine red marbles, four green marbles, three blue marbles, and two yellow marbles. If Lisa draws a random marble from the bag, what is the probability that it will be a red, green, or blue marble?
April 18, 2014 by Lyla

algebra 2
The bag contains three red marbles, two blue marbles, and seven yellow marbles. Two marbles are randomly drawn from the bag. What is the probability of drawing a blue marble, replacing it, and then drawing a blue marble?
May 21, 2010 by Thomas

math
A bag contains red, blue, and orange marbles. If the probability of randomly selecting a red marble is 0.4 and the probability of selecting a red or blue marble is 0.9 what is the probability of selecting a red or orange marble? In my opinion, the easiest way to solve these ...
January 25, 2007 by Preston

math
(1) A bag contains 3 red marbles and 5 blue marbles. Jake will choose 2 marbles without looking. What is the probability that he will choose a blue marble followed by a red marble? (2) Suppose Jake wants to pick a third marble from the set in question 1. He has already picked ...
January 15, 2012 by gary

math
A bag contains 7 blue marbles, 5 red marbles, and 9 green marbles. A marble is taken at random from the bag. What is the probability that the marble is blue or red? Please type in your answer as a fraction.
May 26, 2010 by John

math
I have a bag that contains 10 red marbles, 9 green marbles, and 6 blue marbles. I reach into it and take one marble at random. Keeping that marble, I reach into the bag again and take a second marble at random. a. What is the probability that the first marble is green and the...
February 4, 2015 by joanna

Math
A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. Find the probability of all three blue.
May 18, 2012 by Junior

algebra 2
A bag contains 7 blue marbles, 5 red marbles, and 9 green marbles. A marble is taken at random from the bag. What is the probability that the marble is blue or red? Please check my answer 12/21
May 26, 2010 by John

math
the bag contains 20 red marbles and30 white marbles and 40 blue ones what is the ratioof red to blue marbles what is the ratio of white to red if one marble is drawn from the bag what is the probability that the marble will not be white??? need ansewr fastt plzz
April 8, 2012 by kristen

math
a bag contains 33 green marbles and 25 blue marbles. you select a marble at random from the bag. find the theoretical probability of selecting a blue marble. thanks Pr(blue)= number blue/total marbles
April 13, 2007 by dillon

probability Please check answer
A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability of choosing a marble that is not blue? 7 red marbles plus 1 green marble = 8/10 = answer = 4/5
May 2, 2010 by Bart

math
One white marble, two blue marbles, and three red marbles were in a bag. One marble was drawn from the bag and then put back. then another marble was drawn. What is the probability that a white marble was drawn both times? Is the answer 1/36? 1/6 * 1/6
June 17, 2013 by cici

math
one white marble, two blue marbles, and three red marbles were in a bag. One marble was drawn from the bag and then put back. then another marble was drawn. What is the probability that a white marble was drawn both times? answer: 1/36
August 27, 2013 by cici

prealgebra
a bag contains 6 red marbles, 5 yellow marbles, 7 blue marbles, and 4 white marbles. if one marble is drawn at random from the bag, what is the probability that it will be white? the answer i got is 2 over 11 . is this correct?
July 14, 2009 by sweetangle

algebra 1
The bag contains three red marbles, two blue marbles, and seven yellow marbles. Two marbles are randomly drawn from the bag. What is the probability of drawing a blue marble, replacing it, and then drawing a yellow marble
July 21, 2012 by gab

Math liberal Arts
A bag contains 5 red marbles, 4 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability that it is not blue?
November 19, 2014 by Jamie

math
a bag contains 5 blue marbles 4 red marbles and 1 green marble. what is the probability of drawing a blue marble,the another blue marble without replacement
December 18, 2012 by bryce

Math :)
In a bag of 10 marbles, there are 5 blue marbles, 3 red marbles, and 2 white marbles. Complete the probability distribution table for drawing 1 marble out of the bag. Draw a: Probability Blue marble 5/10 Red marble 3/10 White marble 2/10 Total: 10 Am I doing this right? Thanks...
December 6, 2013 by Kamie

math
A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability of choosing a marble that is not blue? I have seen so many different answers on this site to this question and am not sure. I thought it would be 7 red...
November 27, 2010 by m

math
A bag of marbles contains 8 red marbles and 6 yellow marbles. Two marbles are drawn out of the bag at random without replacement. What is the probability that first a red marble then a yellow marble are drawn? Represent your answer as a fraction in simplest form.
April 22, 2015 by jasmine

math
An urn contains 5 red marbles, 4 blue marbles, and 3 green marbles. A marble is selected at random and then, without replacing the first marble, a second marble is selected at random. What is the probability of selecting a green marble and then a red marble?
November 16, 2011 by Melissa

probability
A bowl contains only red marbles, blue marbles and green marbles. The probability of selecting a red marble from the bowl is 3/13. The probability of selecting a blue marble from the bowl is 2/5. There are fewer than 100 marbles in the bowl. What is the probability of ...
November 15, 2012 by chocolateman

Maths
A bag contains 10 red marbles, 10 green marbles, 10 yellow marbles and 10 blue marbles. You reach into the bag and grab a marble, then reach into the bag and grab a second marble. The probability that the second marble is the same color as the first marble is ab, where a and b...
April 15, 2013 by Ian

math check probability
5. A bag contains 7 green marbles and 4 white marbles. You select a marble at random. What are the odds in favor of picking a green marble? A. 7:11**? B. 7:4 C. 4:7 D. 3:7 ------------------------------------ 6. Food Express is running a special promotion in which customers ...
May 4, 2014 by k.k

math plz help
The contents of a jar holds 4 red marbles, 7 blue marbles, and 5 green marbles from which you select marbles at random. What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your your work. Is it 4/16 for picking red then 7/16 ...
April 16, 2015 by Pink

Math
there are 3 red marbles , 3 blue marbles and 1 green marble in a bag. A marble is drawn at random from the bag and not replaced. Then a second marble is drawn. What are all the possible outcomes?
March 3, 2011 by Help

math
There are 3 red marbles, 3 blue marbles, and 1 green marble in a bag. A marble is drawn at random from the bag and not replaced. Then a second marble is drawn. What are all the possible outcomes?
March 3, 2011 by Holden

Geometry
There are 4 blue marbles, 5 red marbles, 1 green marble, and 2 black marbles in a bag. Suppose you select one marble at random. Find each probability
January 26, 2015 by Blue

Math Probability
In a bag of 10 marbles, there are 5 blue marbles, 3 red marbles, and 2 white marbles. Complete the probability distribution table for drawing 1 marble out of the bag Probability Blue marble Red marble White marble Total:
March 23, 2010 by Marcie

math
If there are 6 blue marbles and 2 red marbles in a bag, what is the probability of picking a blue marble then another blue marble if you do not replace the first marble P(B,B)? 3/4 x 5/7 or is it 3/4 x 6/7?
March 12, 2011 by jake

Math
A box contains 3 red marbles, 6 blue marbles, and 1 white marble. The marble are selected at random, one at a time, and are not replaced. Find the probability. P(blue and red) Please help me
February 2, 2012 by Lisa

Math
A box contains 3 red marbles, 6 blue marbles, and 1 white marble. The marbles are selected at random, one at a time, and are not replaced. Find the probability. P(red and blue and blue) Please help me
February 2, 2012 by Mike

math
A bag has 4 red marbles, 4 blue marbles, and 2 green marbles. Jessie draws a marble from the bag at random, notes the color, and then replaces the marble.She then draws a second marble at random.What is the probability that both the marbles are green? a. 1/45 b. 1/25 c. 1/5 d...
April 17, 2014 by thomas

algebra2/ Trigonometry
A bag contains 24 green marbles, 22 blue marbles, 14 yellow marbles, and 12 red marbles. Suppose you pick one marble at random. What is each probability? A. P(yellow) B. P( not blue) C. P( green or red) Tip: High School Math
June 1, 2014 by khiana

math
A bag contains x marbles. Half of the marbles are blue. Four less than the number of blue marbles are red. The remaining marbles are purple. What is the probability of choosing a purple marble at random? a. 2 b. 4 c. 1/2-(x/2-4)/x d. x/2-4 e. x/2 please answer and explain
October 25, 2013 by Tomas

elem math core
A bag contains one each of red, blue, green, yellow and white marbles. Give the sample space for the following experiments. A) one marble is drawn at random B) one marble is drawn, but not replaced,and then a second marble is drawn.
July 11, 2012 by jordan

Math 1 9th grade
A bag contains 3 green marbles and 6 blue marbles. What is the probability of drawing a blue marble, then another blue marble, then a green marble, replacing the marble after each draw?
January 20, 2011 by Sandra

Math probability - HELP
A bag contains 3 red, 5 yellow, 2 green and 6 blue marbles. If one marble is chosen at random, replaced, and then a second marble is chosen at random, find the probability of obtaining 2 marbles of different colors.
January 23, 2014 by Bryan

Math
If a bag contains 50 marbles with 28 red ones and 22 blue ones. A marble is picked at random from the bag.what is the probability of picking a red marble after a blue marble was picked first?
March 3, 2011 by Kay

Math
A bag contains 3 red, 5 yellow, 2 green and 6 blue marbles. If one marble is chosen at random, replaced, and then a second marble is chosen at random, find the probability of obtaining 2 marbles of different colors.
January 22, 2014 by Bryan

math
A bag contains three green marbles, four blue marbles and two orange marbles. If a marble is picked at random than the probability that it is not and orange marble is
November 3, 2014 by emok

math
A bag contains three green marbles, four blue marbles and two orange marbles. If a marble is picked at random than the probability that it is not and orange marble is
December 6, 2014 by chow

Math
One bag contains 5 red marbles, 4 blue marbles, and 3 yellow marbles, and a second bag contains 4 red marbles, 6 blue marbles, and 5 yellow marbles. If Lydia randomly draws one marble from each bag, what is the probability that they are both not yellow?
May 9, 2012 by Hannah

Math
A bag contains 5 red, 5 blue, 5 green, and 5 white marbles. Two marbles are drawn, but the first marble is not replaced. Find P(red, then blue)
July 22, 2008 by Nathaniel

math
a bag contains 6 red marbles and 2 blue marbles. what is the probability of chosing a red marble and a blue marble at the same time?
May 5, 2011 by Cassidy

math
From a box containing 5 blue marbles,10 red marbles,and 8 yellow marbles,Lisa removed 3 marble,one of which was blue.f she removes one more marble at random,what is the probability that it will be blur? a. 1/4 b. 5/21 c. 1/5 d. 2/7 e. 1/6 please answer and explain
October 16, 2014 by thomas

Probability?
A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You choose a marble, replace it, and choose again. Find P(red, then blue).
April 22, 2013 by Katie

math
A bag contains 3 red marbles, 3 blue marbles and 3 yellow marbles. Which of the following methods of selecting 2 marbles will have the greater probability of choosing 2 red marbles? Randomly choose a marble don't replace it then randomly choose another marble
March 29, 2014 by Matt

To Steve
Sorry here is completed question A bag contains 3 red marbles, 3 blue marbles and 3 yellow marbles. Which of the following methods of selecting 2 marbles will have the greater probability of choosing 2 red marbles? 1- Randomly choose a marble don't replace it then randomly ...
March 29, 2014 by Matt

Math
***PS: I can't put the diagram so I type it.*** The diagram below shows the contents of a jar from which you select marbles at random. Inside the jar there is 16 marbles. Inside the jar there is 4 red marbles. 7 blue marbles. 5 green marbles. a. What is the probability of ...
May 8, 2014 by Chloé

MATH Prob.
if a bag contains 8 red marbles, 6 blue marbles and 9 green marbles, what is the probability of choosing a blue marble??
August 8, 2009 by Twg

math
rene put 2 blue marbles, 2 green marbles, 2 red marbles and 2 white marbles in a bag, if Rene takes 1 marble out of the bag without looking, what is the probability of rene drawing a blue marble?
January 30, 2014 by Larry

MATH
A bag contains 2 red marbles, 4 blue marbles, and 8 green marbles. What is the probability of choosing a blue marble?
November 22, 2011 by Anonymous

math help
1. A bag contains red, blue, green, and yellow marbles. Seth takes a marble from the bag without looking, records the color of the marble, and then puts the marble back in the bag. He repeats the process until he has recorded the colors of 35 marbles. The chart below shows the...
June 6, 2014 by may ann

8th Grade Algebra
Tim and Sasha have a bag containing 7 red marbles, 3 blue marbles, 6 white marbles, and 4 yellow marbles. Tim reaches in, without looking, pulls out a marble, records the color, and then puts the marble back.Sasha then does the same thing. What is the probability that Tim and ...
February 18, 2011 by Elizabeth

math
a jar contains 5 blue marbles, 8 red marbles,4 white marbles,and 3 purple marbles. suppose you pick a marble at random not looking. what is the chance of getting a red marble
October 20, 2013 by wes

math
Hi! I'm Maddie. I need some help on my homework. Here are three problems I need help with: A bowl contains only red marbles, blue marbles and green marbles. The probability of selecting a red marble from the bowl is 3/13. The probability of selecting a blue marble from the ...
August 21, 2013 by Maddie

math
There are 25 red, blue, yellow and green marbles in a bag. Four of the marbles are blue and the probability of selecting a blue or green marble at random is 40%. Write and solve an equation to determine the number of green marbles in the bag
March 28, 2011 by maymay

Math
1. A bag contains red, blue, green, and yellow marbles. Seth takes a marble from the bag without looking, records the color of the marble, and then puts the marble back in the bag. He repeats the process until he has recorded the colors of 35 marbles. The chart below shows the...
January 15, 2015 by Sara

math
A bag contains 6 red marbles nad 4 blue marbles if Dana draws one marble from the bag and then draws another without replacing the first, what is the probability that both marbles will be red?
May 5, 2011 by heather

pre calculus
A bag contains 4 blue marbles, 2 black marbles, and 3 red marbles. If a marble is randomly drawn from the bag, what is probability that it is not black? 1/2 2/9 5/9 7/9 14/19
November 27, 2012 by king chris

harris middle school
a bag contains 5 red marbles,4 white marbles, and 9 blue marbles. you pick a marble without looking. find the probability of drawing a white marble.
January 26, 2012 by mary

math
23.Suppose you choose a marble from a bag containing 6 red marbles, 3 white marbles, and 4 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue). a. 10/13 b. 9/13 c. 24/169 d. 24/13
May 29, 2012 by Anonymous

math
if a bag has one red marble 2 blue marbles and 1 green marble what is the theoretical probability of picking a blue marble?
October 27, 2011 by Nick Bell

probability math question
a bag contanins 7 red marbles, 2 blue marbles, and 1 green marble. What is the probabilty of choosing a marble that is not blue?
March 23, 2014 by Anonymous

Math Probability question
A jar contains four marbles, each a different color: red, blue, green and yellow. If you draw two marbles from the jar, one after another, replacing the first before drawing the second, what is the probability of getting a. two red marbles b. a red marble on the first draw and...
January 23, 2010 by C.J

Math
Find the sample space. a Bag contains 4 marbles: one each of red, blue, green and violet. Two marbles are drawn from the bag. assume that the first marble is not put in the bag before drawing the second marblle
March 21, 2013 by Nangoyi

Algebra 2
a bag contains 3 red marbles and 6 green marbles a marble is drawn and then replaced a second marble is drawn and replaced and then a third marble is drawn what is the probability that a red marble is drawn all 3 times?
January 29, 2012 by Anonymous

Algebra 2
a bag contains 3 red marbles and 6 green marbles a marble is drawn and then replaced a second marble is drawn and replaced and then a third marble is drawn . What is the probability that a red marble is drawn all 3 times?
January 29, 2012 by Susan

Math
Bert has a bag with 12 blue marbles, 6 green marbles, 8 purple marbles, and 4 red marbles. If he want the probability of picking a blue marble to be 1/2 what should he do?
November 27, 2010 by Michelle

Algebra
A bag contains 7 blue, 5 purple, 12 red and 6 orange marbles. Find the probability, if you draw one marble at random from the bag. Select the simplest form. P(not blue)
May 11, 2014 by Prima

algebra
Jared has a bag that contains 8 blue marbles, 6 red marbles, and 10 green marbles. He selects a marble, replaces it in the bag, and then selects another marble. What is the probability that both marbles are green
December 16, 2014 by Anonymous

pre-algebra
a bag contains 5 green marbles 2 white marbles 8 blue marbles 9 red marbles and 6 black marbles what is the probability of drawing a white marble replacing it and then drawing a green marble? Answer choices A 1/6 B 1/15 C 1/87 D 1/90 I think its D, but I am not sure and how ...
February 17, 2011 by Bob

Math
A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. What is the probability of not green, not red, not white?
May 18, 2012 by Junior

Math
A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You choose a marble, replace it, and choose again. What is P(red,then blue)? A. 77/164 B.19/41 C.90/1681 D. 45/41
March 5, 2014 by Anonymous

Math help!
A bag contains 9 blue marbles and 1 green marble. What is the probability of drawing a blue marble followed by a green marble, without replacing the first marble before drawing the second marble? Is the answer 1/9?
May 30, 2013 by Jacob

Math
Callie has 5 yellow pencils 5 red pencils 1 white pencil and 4 pink pencils in her desk drawer. If she picks a pencil at random from her drawer, what is the probability that she will not pick a yellow one A.1/3 B.2/3 C.4/15 D.3/5 B? Billy has 4 red marbles 5 green marbles and ...
December 10, 2012 by Jerald

math
a bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. you choose a marble, replace it, and choose again. what is P(read, then blue)? A. 77/164 B. 19/41 C. 90/1681 D. 45/41
May 7, 2014 by help please

algebra
a bag contains 3 green marbles, 2 yellow marbles, and 5 blue marbles. a marble is picked at random and replaced. a second marble is picked at random. what is the probability that the first marble is yellow and the second is not yellow.
May 25, 2011 by waterman

Math
A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn. A) What is the probability of selecting a purple marble and then a white marble? B) What is the probability of selecting ...
April 13, 2015 by Rima

conditional probability
You have two bags of marbles. Bag 1 has 5 red and 6 blue marbles. Bag 2 has 20 green and 5 red marbles. What is the probability of drawing a red marble out of Bag 2, given that you drew a red marble out of Bag 1?
July 17, 2012 by Anonymous

Math
A bag contains 5 green marbles, 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. you choose a marble, replace it, and choose again. what is P(red then blue.)
May 7, 2014 by SchoolHelpNeeded

Probability
a bag contains 9 red marbles and 4 blue marbles. how many clear marbles should be added to the bag so the probibility of drawing a red marble is 3/5?????
April 30, 2012 by Meg

math
You draw 2 marbles from a bag containing 3 blue marbles, 2 green marbles, and 5 red marbles without replacement. What is the probability of drawing a red marble and then a green marble?
January 4, 2013 by Brenda

Math
A box contains 2 blue marbles and 7 red marbles and two marbles are drawn with out replacement. The probability of not getting a red marble is
April 19, 2011 by Kandace

algebra
One jar holds 16 red marbles and 4 blue marbles. A second jar holds 75 white marbles and 25 blue marbles. What is the probability that a blue marble will be drawn from both jars?
May 27, 2011 by Anonymous

Math
Suppose you have a bag containing two red marbles, two blue marbles, and two white marbles. You choose two marbles without looking. a. What is the probability that you will choose a red marble and then a blue marble without replacing the red one? b. What is the probability ...
June 13, 2009 by D.

Math
A jar contains four marbles, each a different color: red, blue, green, and yellow. If you draw two marbles from the jar, one after another, replacing the first before drawing the second, what is the probability of getting a. two red marbles? b. a red marble on the first draw ...
November 29, 2009 by Punkie

experimental probability
you spin a spinner 50 times. it lands on red 8 times, yellow 12 times, green 20 times, and blue 10 times. based on the results, what is the experimental probility of its landing on green or yellow? thanks I will be happy to critique your work on this. i have a different ...
April 13, 2007 by dillon

math/probability
A jar contains four marbles, each a different color: red, blue, green, and yellow. If you draw two marbles from the jar, one after another, replacing the first before drawing the second, what is the probability of getting a. two red marbles? b. a red marble on the first draw ...
October 21, 2009 by jason

MATH
You have a bag of marbles containing 13 red marbles, 8 green marbles, 7 yellow marbles, and 7 blue marbles. What is the probability of drawing a green marble, putting the marble in your pocket and then drawing a yellow marble?
August 29, 2013 by Kim

math
a bag contains 7 red marbles, 8 blue marbles and 4 green marbles. what is the probablity of choosing a blue marble?
June 15, 2012 by Anonymous

MATH Prob.
A jar contains four marbles, each a different color: red, blue, green, and yellow. If you draw two marbles from the jar, one after another, replacing the first before drawing the second, what is the probability of getting a. two red marbles? b. a red marble on the first draw ...
August 12, 2009 by Twg

Math
there are 9 blue marbles, 4 black marbles, 5 white marbles and 6 red marbles. If the probability of drawing a blue marble is now 1/3, how many of the 6 marbles removed were blue?
August 3, 2014 by Jason

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