As part of a statistics project, a teacher brings a bag of marbles containing 600 white marbles and 400 red marbles. She tells the students the bag contains 1000 total marbles, and asks her students to determine how many red marbles are in the bag without counting them.
A student randomly draws 150 marbles from the bag. Of the 150 marbles, 63 are red.
1.Based on the sample, the student would estimate that _________ marbles in the bag were red.
 👍
 👎
 👁
 ℹ️
 🚩
1 answer

63/150 * 1000 = ____
 👍
 👎
 ℹ️
 🚩
answered by oobleck
Answer this Question
Related Questions

Math
A bag contains 1 gold marbles, 9 silver marbles, and 26 black marbles. Someone offers to play this game: You randomly select one marble from the bag. is gold, you win $3. If it is silver, you win $2. If it is black, you lose $1. What is your expected value
 asked by Josiah
 2,481 views

Expected Value
A bag contains 2 gold marbles, 7 silver marbles, and 23 black marbles. Someone offers to play this game: You randomly select one marble from the bag. If it is gold, you win $4. If it is silver, you win $2. If it is black, you lose $1. What is your expected
 asked by tatiana
 9,829 views

math
a bag of marbles can be divided evenly among two, three, or four friends. a) how many marbles might be in the bag b) what is the least number of marbles that can be in the bag? c) how many would there be if there are between 30 an 40 marbles in the bag?
 asked by jha
 8,185 views

Math
A bag contains 3 gold marbles, 10 silver marbles, and 21 black marbles. Someone offers to play this game: You randomly select on marble from the bag. If it is gold, you win $3. If it is silver, you win $2. If it is black, you lose $1.
 asked by Anonymous
 4,224 views

Math: Conditional Probability
A bag contains 5 blue marbles, 8 green marbles, 4 red marbles, and 3 yellow marbles. Event A = drawing a green marble on the first draw Event B = drawing a blue marble on the second draw If Jasmine draws two marbles from the bag, one after the other and
 asked by Sophia
 1,704 views

Math
A bag contains 6 red marbles, 3 white marbles, and 7 blue marbles. You pick a marble without looking. Find the probability of drawing a white marble. Can someone please explain how I would work this out?
 asked by Emily
 16,933 views

MathProbability
Suppose an urn contains 8 red,5 white and 7 blue marbles.If 3 marbles are drawn at random from the urn with replacement,what is the probability that three marbles are the same color?Give answer in a reduced fraction.
 asked by Melina
 641 views

helps! i need a fast answer
A bag contains 3 red marbles, 5 blue marbles, and 4 black marbles. Jenna draws a black marble and does not replace it. What is the probability of drawing a black marble next?
 asked by plz help me
 639 views

Expected Value
A bag contains 1 gold marbles, 10 silver marbles, and 29 black marbles. Someone offers to play this game: You randomly select one marble from the bag. If it is gold, you win $4. If it is silver, you win $2. If it is black, you lose $1. What is your
 asked by tatiana
 5,338 views

math
Suppose a bag contains 3 blue and 2 green marbles. You randomly draw 2 marbles without replacement. If B=drawing a blue marble and G=drawing a green marble, which event does NOT have the same probability as the others? Bag A. GG B. BB C. GB D. BG
 asked by wayne
 2,792 views

math
In a bag there are red, green, black,and white marbles. If there are 6 red, 8 green, 4 black, and 12 white and one marble is to be selected at random, what is the probability it will be white? I don't know how to solve these.
 asked by Amy
 2,813 views

Math geometry
Please help , I only need the second part of the question Betty picks 4 random marbles from a bag containing 3 white , 4 yellow and 5 blue marbles The probability that exactly 1 of the 4 marbles drawn is blue is (0.3535) . The probability that at least 1
 asked by Katy
 5,697 views

math
A bag contains 5 red marbles, 6 white marbles, and 8 blue marbles. You draw 5 marbles out at random, without replacement. What is the probability that all the marbles are red? The probability that all the marbles are red is? What is the probability that
 asked by vicke
 5,893 views

mathmatics
A bag contains 6 blue marbles, 7 green marbles, and 9 yellow marbles. Twice you draw a marble and replace it. Find P(yellow, then green). c: Pls Helpppp
 asked by Abigail waller
 2,815 views

math
A bag contains 4 white, 3 blue, and 5 red marbles. 1. Find the probability of choosing a red marble, then a white marble if the marbles are replaced. A. 1/12 B. 5/36 *** C. 5/6 D. 5/12 2. Find the probability of choosing 3 blue marbles in a row if the
 asked by jjiiddss
 21,680 views

math
a bag contains 5 blue, 4 red, 9 white, and 6 green marbles. if a marble is drawn at random and replaced 100 times, how many would you expect to draw a green marble?
 asked by toan
 1,266 views

math
A bag contains 8 red marbles, 5 blue marbles, 8 yellow marbles, and 6 green marbles. What is the probability of choosing a red marble if a single choice is made from the bag? is it 8/27 ?
 asked by bev
 3,316 views

m/c
Which of the following refers to when a researcher gathers data from a sample and uses the statistics generated to reach conclusions about the population from which the sample was taken? inferential statistics holistic statistics conclusive statistics
 asked by Thara!
 1,815 views

statistics
A bag contains 4 white marbles, 5 red marbles, and 9 blue marbles. If a marble is drawn from the bag, replaced, and another marble is drawn, what is the probability of drawing first a white marble, and then a blue marble? A bag contains 5 green marbles, 9
 asked by Dre
 2,118 views

math
A bag contains 2 gold marbles, 6 silver marbles, and 23 black marbles. Someone offers to play this game: You randomly select one marble from the bag. If it is gold, you win $4. If it is silver, you win $2. If it is black, you lose $1. What is your expected
 asked by Ralph J. Bianchi
 1,766 views
Still need help?
You can ask a new question or browse existing questions.