Question

from a bag containing 4 red and 2 black balls, two balls are drawn the probability of getting 2 black ball is​

Answer 1

Answer:

We assume that there are 4 white balls and 2 black balls.

There are (  

2

6

​  

)=15 total possible ways of drawing two balls from these given 6 balls.

We are interested in the event where the two drawn balls are of the same colour.  

For this, we note that the number of ways of drawing 2 white balls is (  

2

4

​  

)=6 whereas the number of ways of drawing 2 black balls is (  

2

2

​  

)=1.

So, the probability that the two drawn balls are of the same colour is  

15

6+1

​  

=  

15

7

​  

.

Step-by-step explanation:

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Answer 2

Answer:

We assume that there are 4 red balls and 2 black balls.

There are 15 total possible ways of drawing two balls from these given 6 balls.

We are interested in the event where the two drawn balls are of the same color.  

For this, we note that the number of ways of drawing 2 red balls is =6 whereas the number of ways of drawing 2 black balls is =1.

So, the probability that the two drawn balls are of the same color is  

=6+1/15

=7/15

therefore

probability of getting two black balls is 7/15

hope you understand

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