No, there are not two different answers. The probability that, of 5 people, they are as said, is the product of all 5 fractions.

Results 1 to 3 of 3

- September 19th 2012, 01:47 PM #1

- Joined
- Mar 2012
- From
- LA
- Posts
- 68

## is this right?

What is the probability that if 5 students are randomly selected, without replacements, the first 3 are taking less than 8 units and the last two are taking at least 8 units.

I got 1395/2461 x 1394/2460 x 1393/2459 AND FOR the last 2 taking at least 8 units, 1066/2458 x 1065/2457.

Did I do this right?

- September 19th 2012, 06:51 PM #2

- Joined
- Apr 2005
- Posts
- 18,053
- Thanks
- 2381

- September 19th 2012, 07:12 PM #3

- Joined
- Mar 2012
- From
- LA
- Posts
- 68