- Messages
- 102
- Reaction score
- 10
- Points
- 28
It's same thing what you apply in binomial question. Applying 4C2 here means that from 4 turns in which turn he'll get exactly 2 unwrapped biscuitsHow did you do it?
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
It's same thing what you apply in binomial question. Applying 4C2 here means that from 4 turns in which turn he'll get exactly 2 unwrapped biscuitsHow did you do it?
Oh lol sorry. I meant 4!/2!*2!.its the correct method. multiply by 4C2 or by 4!/(2!*2!). as there r two wrapped and two unwrapped
yes, i'm sure. I checked this method from marking scheme for without replacement questions.
It's not. You're supposed to multiply the entire thing by 4!/2! instead of 4C2.
Isn't 4!/2! and 4C2 both equal to 6?
nope.... 4!/2! is 12 not 6
Yeah, my bad but a lot of people who did this question by probability or by drawing a tree diagram got the same answer.
Yes, it is indeed correct. The correct answer was supposed to be 0.368, and it gives exactly that.
I made a horrendous error. What I did was write 4C2*(18/30)*(17/29)*(12/30)*(11/29) and got the answer 0.320. I must have been blind or something. Do you expect I'd get any marks out of 4? 2 maybe?
i got the answer 5514.. i wonder who is correct...was ans to q1 was something like , 2154?
Okay i don't remember exactly but it could be something similar to you..i got the answer 5514.. i wonder who is correct...
What did you get for the standard deviation?
Was it 6.06025?
it is 5508.5 or 5509smthng like that
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now