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Week 2 Unit 1-3 (Discrete Random Variables (f(x), Diagram of Distribution…
Week 2 Unit 1-3
Discrete Random Variables
f(x)
Diagram of Distribution Function
half (impossible) numbers can be used to display if value or over is relevant.
small f = once precise outcome
big F, more than one outcome
E = Expectation
Variance
Calculate volatility
Var() on calculator
Standard Deviation: Gets back to correct units
75% will be between two standard deviation
Continuous random variables
Precision is difficult (height)
Gaussian Distribution
Binomial Function
Excel: Binom.DIST (s,n,p,c)
n: number of trials
p: probaility of success
c: logical operator
s: ?
Chapter 5 in book
Chapter 6
pages 606 and 607
First part of unit 3 is examable (page 9)