A bag contains 7 lavender marbles, 11 turquoise marbles and 5 rainbow marbles. What is the chance of drawing a lavender marble? If a lavender marble is drawn then placed back into the bag, and a second marble is drawn, what is the probability of drawing a turquoise marble? Give solutions exactly in reduced fraction form, separated by a comma

7 + 11 + 5 = 23 marbles

7/23 is the first answer.

What do you get for the second answer?

is it 11/23??

Right.

See -- that's not so hard. :-)

really? i didn't think it was that easy...so it's 7/23 and 11/23???

What is the probability of selecting a purple marble and then a white marble?

What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

To find the probability of drawing a lavender marble, we need to know the total number of marbles in the bag.

The total number of marbles in the bag is the sum of the lavender, turquoise, and rainbow marbles: 7 + 11 + 5 = 23.

The probability of drawing a lavender marble is the number of lavender marbles divided by the total number of marbles: 7/23.

To find the probability of drawing a turquoise marble after replacing the lavender marble, we need to know the total number of marbles in the bag. Since the lavender marble was placed back into the bag, the total number of marbles remains 23.

The probability of drawing a turquoise marble is the number of turquoise marbles divided by the total number of marbles: 11/23.

Therefore, the probability of drawing a lavender marble is 7/23, and the probability of drawing a turquoise marble after replacing the lavender marble is 11/23.