Reach the sky;

Saturday, January 24, 2009

Dumb skin doesn't let me show my post titles. But I'll put it here, in light of the Probability test in a couple of weeks(this is found in my maths textbook-except for (iv)):

Probability Revision

Ex 6e - Q16

Six cards are marked with the letters F,O,L,L,O and W respectively.
(a) One card is chosen at random. State the probability that it is the card bearing the letter L or O. ----------------- Ans: 2/3
(b)The cards are put face down on the table and their positions are randomly mixed. The cards are turned over one at a time. In each of the following cases, find the probability that
(i)the first two cards turned over will each have the letter O marked on them,
------------ Ans: 1/15
(ii)the second card turned over will have the letter F marked on it,
------------ Ans: 1/6
(iii)the first three cards turned over are in the order L,O and W,
------------ Ans: 1/30
and
(iv)all the cards are turned over in the order F,O,L,L,O and W...

Worked Solution:
P(FOLLOW)=1

“The wind played with my hair at 9:04 PM”

about me

Name: Lim Xiwen
Age: 16
Birthday: 17th April 1993

Proud member of Sec 4 Unity 09'
IGNYTER

wishlist

1. Grow in God
2. Grow taller
3. More time
4. More self-control
5. To learn how to bar
6. Fufil my resolutions
7. Leave a legacy
8. Improve in football

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links

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