Qualification > Math

Urgent: Maths CIE Stats

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Deadly_king:

--- Quote from: $!$RatJumper$!$ on October 31, 2010, 11:37:34 am ---yes thats right :) thought i have computing tomorrow :/ haha

--- End quote ---

Hehe.......Good luck then br0 :)

I don't do computing :D

$H00t!N& $t@r:
question!  ;D

The following question is from 9709_w09_qp_62:
(i need the solution for 4 a(ii) and b)

4 (a) (i) Find how many different four-digit numbers can be made using only the digits 1, 3, 5 and 6
with no digit being repeated.

(ii) Find how many different odd numbers greater than 500 can be made using some or all of
the digits 1, 3, 5 and 6 with no digit being repeated.

(b) Six cards numbered 1, 2, 3, 4, 5, 6 are arranged randomly in a line. Find the probability that the
cards numbered 4 and 5 are not next to each other.

Thanks in advance  ;)

lana:

--- Quote from: $H00t!N& $t@r on October 31, 2010, 01:53:39 pm ---question!  ;D

The following question is from 9709_w09_qp_62:
(i need the solution for 4 a(ii) and b)

4 (a) (i) Find how many different four-digit numbers can be made using only the digits 1, 3, 5 and 6
with no digit being repeated.

(ii) Find how many different odd numbers greater than 500 can be made using some or all of
the digits 1, 3, 5 and 6 with no digit being repeated.

(b) Six cards numbered 1, 2, 3, 4, 5, 6 are arranged randomly in a line. Find the probability that the
cards numbered 4 and 5 are not next to each other.

Thanks in advance  ;)

--- End quote ---

b) cards numbered 4 and 5 next to each other : 5!× 2!
    6 cards  can be arranged in 6!
    6! - (5!×2!) = 480
    probability : 480/6! = 2/3

lana:
I have a question !! how can I know which measure of central tendency is the most appropriate to represent a set of data ??!!
thank youu  :)

Deadly_king:

--- Quote from: lana on November 01, 2010, 02:26:56 pm ---I have a question !! how can I know which measure of central tendency is the most appropriate to represent a set of data ??!!
thank youu  :)

--- End quote ---

Am not sure myself.

Hope this helps :)

http://simon.cs.vt.edu/sosci/Site/MMM/mmm.html

http://www.quickmba.com/stats/centralten/

By the way thanks for the answers.:)
+rep

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