June 2009
March 2010
April 2010
May 2010
June 2010

X bar (mean) = a+b+c/n
P(E)= No of outcome in event E / No of outcome in sample place
None = 1-P(E)
Multiplication rule: P(A&B)= P(A)xP(B)
Addition rule: P(AorB)= P(A)+P(B)-P(A&B)
Additional rule of 3 event:
P(A or B or C)= P(A)+P(B)+P(C)-P(A&B)-P(A&C)-P(B&C)+P(A&B&C)

Topic 2
Binomial
n: Number of times of a trial is repeated
p=P(S):Probability of success in a single trial
q= P(F): The probability of failure in a single trial (q=1-p)
x: The random variable represent s a count of the number of successes in n trials:x=0,1,2,3,n

Binomial Probability Formula
P(x)= nCx*P^x*q^(n-x)= n!/(n-x)!x!*p^x*q^n-x