Department

SociologyCourse Code

SOCC31H3Professor

Shirin MontazerStudy Guide

FinalThis

**preview**shows half of the first page. to view the full**2 pages of the document.**Formula Sheet for Lecture 3

Variance

Standard Deviation

Probability :

Multiplication rule (AND)

Dependent Events

P (B and B) = P(A) . P (B/A)

Independent Events

P (A and B) = p (A)*p (B)

Addition rule (OR)

NOT mutually exclusive

P(A or B) = P(A) + P(B) - P(AB)

Mutually exclusive

P (A or B) = P(A) + P(B)

Binomial Probability

nCrprqn-r = n!/(n-r)!r! *prqn-r

2

2X

N

X

s

2

2

2X

N

X

s

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