SOLUTION: You have a jar filled with 10 red marbles and 10 blue marbles. What is the probability be of drawing a red marble followed by a blue. Please show work and explain. Thank you so m

Algebra ->  Probability-and-statistics -> SOLUTION: You have a jar filled with 10 red marbles and 10 blue marbles. What is the probability be of drawing a red marble followed by a blue. Please show work and explain. Thank you so m      Log On


   

Question 343903: You have a jar filled with 10 red marbles and 10 blue marbles. What is the probability be of drawing a red marble followed by a blue. Please show work and explain. Thank you so much for your help.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
10 Red
10 Blue
20 Total
P(Red)=10%2F20
Now there are 9 Reds, 10 Blues, 19 total left in the jar
P(Blue)=10%2F19
P(Red then Blue)=%2810%2F20%29%2810%2F19%29=5%2F19