- Messages
- 302
- Reaction score
- 665
- Points
- 103
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Ahh! I was taking 4 by mistake, but method was technically correct.1 2 3 4 5 6 7 8 9 10 11 12
imagine each of the above as seats with named with numbers. we could start the row from 1 or 2 or 3 or 4 or 5 and still 8 people would fit the row. remember, there are no spaces between them. so we have 5 options to start from. again within each arrangement, the people could be positioned in 8! or 8P8 ways
so the answer is 5*8!
No Im asking that in case we are taking phi inverse of a probability to get value of A.assalam walaikum
brother... if it is phi(-k)=0.7465
according to the rule phi(-k)= 1- phi(k)
hope that helps
i think u can find mean by (39+63/2)... and i dont know about standard deviaton ... i will let u know asapanyone plz help me in Q1 (i)
thanks in advance
http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w09_qp_62.pdf
actually i asked abt Q1 (ii)i think u can find mean by (39+63/2)... and i dont know about standard deviaton ... i will let u know asap
in second partanyone plz help me in Q1 (ii)
thanks in advance
http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w09_qp_62.pdf
yea, thanks sisin second part
P(X=63)=1-0.25
P(z=63-51/sigma)=0.75
63-51/sigma=0.674
sigma=17.8
hope u get it
anyone plz help me in Q1 (ii)
thanks in advance
http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w09_qp_62.pdf
ur welcome...yea, thanks sis
thankyou u know u r dead if i come to bangladesh rightGoodluck everyone!!!
syed1995 Anika Raisa Ashique A star (Butttt) Jiyad Ahsan littlecloud11 Ryan123 salvatore PhyZac Dug
@ every1 giving stats
thankyou u know u r dead if i come to bangladesh right
Same here.Boring and makes no sense to me.I am! Its really confusing to me...
How was the paper guys ??
Why has no one posted anything yet?
Anika Raisa Alice123 syed1995 MustafaMotani PhyZac Dug and all the stats people ??
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