SOLUTION: Hi,
There are 12 red beads and 12 green beads. Choose 4 beads randomly.
1. What are the chances that 4 out of 4 beads will be red?
(12/24)^4 seems correct. But why would
Algebra ->
Probability-and-statistics
-> SOLUTION: Hi,
There are 12 red beads and 12 green beads. Choose 4 beads randomly.
1. What are the chances that 4 out of 4 beads will be red?
(12/24)^4 seems correct. But why would
Log On
Question 576800: Hi,
There are 12 red beads and 12 green beads. Choose 4 beads randomly.
1. What are the chances that 4 out of 4 beads will be red?
(12/24)^4 seems correct. But why wouldn't 12C4/24C4 be correct? I'm having trouble understanding when to use which formula.
2. What are the chances that 3 out of 4 beads will be red?
12C3+12C4/24C4 <--- is this correct?
