A bag contains 50 marbles, 28 red ones and 22 blue ones. A marble is picked at random from the bag. 17 What is the probability of picking a red marble after a blue marble had been picked first and not replaced?

28/49 probability  or  57.1 % probability of getting a red knowing a blue was taken out

Step-by-step explanation:

Find  P( picking a red given that a blue marble was picked)

=  (28/49)=  0.57142

Because you took a blue out and did not replace, your total left is 49 marbles.

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

yes

step-by-step explanation:

yes