Book 1

Question 1

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Bayes Forumla

Answer 1

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kjhkjhl

Question 2

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A^C

Answer 2

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In probability, the complement of A or not A

Question 3

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0!

Answer 3

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Answer is 1

Zero Factorial

Factorial’s always end in x 1

Question 4

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Labeling

Answer 4

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situation where there are n items that can each receive one of k different labels.

Question 5

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Combination vs Permutation

Answer 5

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# of Combinations: regardless of order, this is a smaller number.

_nC_r = n!/ (n-r)! x r!

# of Permutations: order matters, larger number

_nP_r = n!/ (n-r)!

Question 6

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5 Counting Rules

Answer 6

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No Groups

2 Groups only

2+ Groups

3+ subGroups

Question 7

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Discrete Random Variable

vs

Continuous Random Variable

Answer 7

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Discrete: variable is one for which the number of possible outcomes can be counted, and for each possible outcome, there is a measurable and positive probability. aka # of days with rain within a month

Continuous: number of possible outcomes is
infinite, even if lower and upper bounds exist. # of daily days of rain can be measured in any subset of measurements (inches, half inches)

Question 8

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Conditions for a Probablity Function

Answer 8

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1. Must be between 0 and 1
2. All possibilities must sum to 1

Question 9

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Discrete Uniform Random Variable

Answer 9

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one for which the probabilities for all possible
outcomes for a discrete random variable are equal.

think Fair Dice