f3 mth questions!!!急~ 2

Q5:
Area of BCE:Area of ABCD=6x8x0.5:6x8=1:2
_____
Shaded region:
1/2
non-shaded region:
1-1/2=1/2
____________

2011-02-07 11:47:57 補充：
P(ab=6):
P(1x6)+P(2x3)+P(3x2)+P(6x1)
=(1/6)(1/6)x4
=1/9
_____________
P(John wins the first game but loss the second game)
(1/2)(1/2)=1/4

2011-02-07 11:52:18 補充：
Q8:
8a:
P(an odd number)
(101+94+96)/600
291/600
=0.485
_________
P(less than 3)
P(1)+P(2)
(101/600)+(111/600)
212/600
0.353(3.d.p)
_______
P(even number)
P(not odd number)
1-0.485
0.515

2011-02-07 12:00:46 補充：
9a:
King:
4/52*500
=500/13
_________
Spade:
13/52*500
=125
__________
3,5,7
12/52*500
1500/13
_________
Queen(not red)
2/52*500
250/13

2011-02-07 12:03:47 補充：
1a:
Yes
1b
Yes
1c
Yes
1d
P(3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48)
(16/52)
4/13

2011-02-07 12:13:34 補充：
2a:
P(a mutiple of2 or 5)
(70/100)-(10/100)
6/10
3/5
2b
P(factor of100)
P(1,2,4,5,10,20,25,50,100)
8/100
=0.08
_____
P(prime number)
P2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,91,97
26/100
0.26

2011-02-07 12:14:06 補充：
I have answered in adivice zone

2011-02-07 12:14:23 補充：
Q5:
Area of BCE:Area of ABCD=6x8x0.5:6x8=1:2
_____
Shaded region:
1/2
non-shaded region:
1-1/2=1/2
____________

2011-02-07 12:14:34 補充：
P(ab=6):
P(1x6)+P(2x3)+P(3x2)+P(6x1)
=(1/6)(1/6)x4
=1/9
_____________
P(John wins the first game but loss the second game)
(1/2)(1/2)=1/4

2011-02-07 12:14:59 補充：
Q8:
8a:
P(an odd number)
(101+94+96)/600
291/600
=0.485
_________
P(less than 3)
P(1)+P(2)
(101/600)+(111/600)
212/600
0.353(3.d.p)
_______
P(even number)
P(not odd number)
1-0.485
0.515

2011-02-07 12:15:16 補充：
9a:
King:
4/52*500
=500/13
_________
Spade:
13/52*500
=125
__________
3,5,7
12/52*500
1500/13
_________
Queen(not red)
2/52*500
250/13

2011-02-07 12:15:31 補充：
1a:
Yes
1b
Yes
1c
Yes
1d
P(3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48)
(16/52)
4/13

2011-02-07 12:16:35 補充：
2a:
P(a mutiple of2 or 5)
(70/100)-(10/100)
6/10
3/5
2b
P(factor of100)
P(1,2,4,5,10,20,25,50,100)
8/100
=0.08
_____
P(prime number)
P2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,91,97
26/100
0.26
___-__
P(prime factor of 100)
P(5)
1/100

2011-02-07 14:54:15 補充：
Yes,I type wrong....

2011-02-07 15:03:06 補充：
1a:You draw a card that is not 1,you put back the drawn card ,it is possible that all cards you drawn in 2000 draws are same which is not 1.

2011-02-07 15:26:48 補充：
Same reason,but you have to change the information