Ask
your own question, for FREE!
Mathematics
24 Online
A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a red marble, replacing it, and then picking a black marble?
Still Need Help?
Join the QuestionCove community and study together with friends!
just to check my answer
( 5/15)*(4/15)
So this time, there are two difference. The marble colors are different for each pick and this problem has replacement, meaning you return the marble you picked out. In the beginning, the probability of a red marble is 5/15 After you've picked the first one and replace it, the probability of a black marble is 4/15 So your statement would be: Probability of red and black = Probability of 1st red * probability of 2nd black = (5/15) * (4/15) = 20/225 = 4/45
thanks!!!!!!!!!! i got that answer
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Deadglock:
Do humans really need friends? This is Isaac Newton. He was... a jerk. And a loner.
whyjustwhy:
what is something to busy ur hands to prevent urself from cutting urslf
sobitter:
Grammar check? Once, there was a girl named Alaida. She was a small-town girl with big dreams of becoming a famous horse rider.
notmeta:
Nitrogen is an essential componant of all living things. However, atmospheric nitrogen is unavaibable for organisms to use.
Earfquake:
this is a zombie gloomy bear i painted for an art project ! we had to take a well known character and reimagine it and make it our own.
Jaynater:
ud835udde4ud835uddd6 ud835udde0ud835uddf6ud835uddfbud835uddf2ud835uddf0ud835uddffud835uddeeud835uddf3ud835ude01 ud835udde6ud835uddf2ud835uddffud835ude03ud83
3 hours ago
22 Replies
3 Medals
9 hours ago
13 Replies
0 Medals
14 hours ago
13 Replies
1 Medal
1 day ago
4 Replies
2 Medals
23 hours ago
12 Replies
3 Medals
14 hours ago
9 Replies
3 Medals