math

A box contains a dozen markers: 4 purple, 3 black, 3 orange, and 2 red. Abbey takes 2 markers out of the box without looking. What is the probability that Abbey picks a black marker and then a purple marker if she replaces the first marker? Answer in simplest form.

  1. 👍 0
  2. 👎 0
  3. 👁 83
  1. prob(black, then purple)
    = (3/12)(4/12) , denominator stays at 12, since she returned the marker.
    = ....

Respond to this Question

First Name

Your Response

Similar Questions

  1. 7th grade math

    Can you check this problem? Jean has 5 different colors of markers: red, blue, green, orange, and purple. Two colors are used to make a sign. How many different combinations are possible? List them. Ans: 10 possible combinations

    asked by Alexis on September 30, 2014
  2. Math grade 8

    a jar contains 4 white chips, 5 purple chips and 1 black chip. chips are selected randomly one at at time and are not replaced. What is the probability of choosing a purple then black chip?

    asked by Kaelin on January 23, 2011
  3. Math(help please)

    Alexis has a pencil bag containing one of more of each of the following: red pens, blue pens, mechanical pencils, and black markers. He knows that there is a 4% chance he will pull a red pen out of the bag if he chooses randomly.

    asked by Anonymous on July 14, 2016
  4. Algebra

    A bag consists of 4 different colored marbles. The probability of drawing each is as follows: P (Blue)=. 4 P (Red)= .2 P (Purple)= .3 P (Black)= .1 You draw a marble out of the bag and then replace it. What is the probability that

    asked by Anonymous on February 23, 2019
  5. NEED HELP drawing a visual for this question

    Marnie collects red, blue and purple buttons. At the beginning of the year she has 360 buttons in a box. The ratio of red buttons to blue buttons is 4:3 and there are twice as many red buttons as purple buttons. a.What is the

    asked by Dell on December 6, 2011
  1. Data Management

    A box contains 14 yellow, 6 green, 10 purple, and 12 red candies jumbled together. What is the expected number of red candies among 5 candies poured from the box?

    asked by Joshua on May 2, 2012
  2. Math

    Please help I don't get how to do this! A spinner has three congruent sectors colored orange, green, and purple. Use the rule of probability of each event. a) landing on orange, then landing on purple b) landing on the same color

    asked by Cherie on April 16, 2013
  3. math

    Suppose that a crayon weighs the same as a marker. You have a box of crayons, 4 extra crayons, and 20 markers. Let b be the number of crayons in the box. A scale balances with all the crayons on one side and all the markers on the

    asked by william on October 2, 2014
  4. Math

    A spinner has three congruent sectors colored orange, green, and purple. Every spin has has 1/3 chance of landing on any color and there is 1/9 chance of landing on orange and then on purple. There is 1/3 chance of landing on same

    asked by Cherie on April 22, 2013
  5. Maths

    In a box of markers there are eight which have dried up and will not write. The box contains 15 red, 15 purple, 5 black and 10 white markers. A marker is picked at random from the box. Find the probability that a) it is red b) it

    asked by Aj on January 26, 2016

You can view more similar questions or ask a new question.