Answered

IDNLearn.com is designed to help you find the answers you need quickly and easily. Our experts provide timely and accurate responses to help you navigate any topic or issue with confidence.

7. Suppose that Trevor takes out 1 marble, and holds on to it, then takes out 1 pointanother marble. What is the probability that both marbles will be black inthis situation?

Sagot :

The probability that both marbles will be black is 1/7

Here, we want to get a probability

Firstly, the total number of marbles is 3 + 4 = 7 marbles

Firstly, he takes out 1 marble

The probability that this is black will be the number of black marbles divided by the total number of marbles which is 3/7

Now, in the bag, there would be 6 marbles left and 2 black marbles

The probability of now selecting a black marble would be 2/6

Finally, the probability that both marbles will be black in the situation would be the product of this two probability

We have this as;

[tex]\frac{3}{7}\times\frac{2}{6}\text{ = }\frac{1}{7}[/tex]

Thank you for being part of this discussion. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Your questions find answers at IDNLearn.com. Thanks for visiting, and come back for more accurate and reliable solutions.