Homework Statement
Hey all, been having some problem with the rule..technique looks right but doesn't agree with wolfram's calc answer. Doing a moment generating function problem.
M(t)=(e^5t-e^4t)/t, Find EX and VARX
Homework Equations
M'(0)=e(x) and so on..
The Attempt at a...
well i did, i think :confused:
for example, (3/20)(2/19)(17/18)(1/17) WWLW, last win ball drawn by opponent, probability is still 1/1140?
alright, ill try the above method.
So I need to calculate the total probability of me losing when I draw first?
Like,
WWLW
LWWW
WLWW
WLLLLLWW
up until the 20th draw
etc?
something seems to be wrong lol.
What abt my other 2 answers? Are they right?
Homework Statement
17 balls named LOSE
3 balls named WIN
no replacements
person who selects 3rd win ball wins the game, regardless of who selected the other 2 WIN balls
a)If i draw 1st, find the probability that I win the game on my second draw
b) If I draw 1st, find the probability...
Homework Statement
To put it simply, there are 4 different flavors of ice cream, and 6 different toppings.
a)how many sundaes are possible using one flavor of ice cream and 3 diff toppings?
b)How many sundaes are possible using one flavour of ice cream and from 0 to 6 toppings?
c)How many...
Fission/Fusion reactions confusion help please
Homework Statement
http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_s03_qp_4.pdf
number 6...
http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_s05_qp_4.pdfHomework Statement
6b
Homework Equations
flux linkage = BA
B=F/iL
The Attempt at a Solution
from my understanding, if B=F/iL , if the current is zero...
http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20%289709%29/9709_w09_qp_31.pdfHomework Statement
6i
Homework Equations
r=a+λb
The Attempt at a Solution
first i find AB which is (2,2,-2)
the equation if line is then...