In a bag, there are 10 black plastic chips, 7 yellow, 5 red, and 3 green. two chips are drawn at random with replacement. find p(black, then red). answer choices: a) 2/25 b) 2/5 c) 3/5 d) 2/3

When the black chip is drawn, there is already one less chip in the bag; keep this in mind..

the probability of getting a black chip out of the bag is 10/25 or 2/5

now since there is one less chip, there is a total of 24 chips now..

so now the probability of getting a red chip is 5/24 

then you would multiply the two events together and get:

2/5 x 5/24solve

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

What the heck don’t understand