4 red out of a total of 16
4/16 of a red
You replace the red so you still have 16
7/16 chance of a blue
AND means both events have to happen to you multiply the two fractions.
2) there is no replacement.
Getting the same is the same as in #1 But... getting the blue is now 7/15 because we did not replace the marble,
Multiple 4/16 times 7/15
The answers are not the same because in the first question there was replacement and in the second question there was no replacement.
please show me the steps that you use to solve the problem. you can also use the comment field to explain the work.
QUESTION:
1. what is the probability of selecting a red marble, replacing it, and then selecting a blue marble? show work
2. what is the probability of selecting a red marble, setting it aside, and then selecting a blue marble? show your work
3. are the answers to parts (a) and (b) the same? why or why not?
KEY:
4 red marbles
7 blue marbles
5 green marbles
1 answer