Ilearned probability a few years ago, but i'm not quite sure how to solve this. can someone lend me some knowledge?

There are 12 marbles in total. 4 of them are white.

The probability of getting a white marble on the first try is 4/12 or 1/3.

The probability of getting a second white marble in a row? Since you already pulled out a white marble on the first attempt, there are now 3 white marbles and 11 marbles in total.  So the probability of getting a white marble at this point is 3/11.

Thus the probability of doing this back to back is 1/3 * 3/11 or 3/33 or 1/11.

The answer is B.

the answer will be 1/11

Step-by-step explanation:

5+2+4+1=12 and 12 two out or 12 of them will be pulled and if you think about it 8 out 4  white marbles

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

i don't have the answer rn but go to math papa. it shows the steps and the answer. hope this : )

step-by-step explanation: