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Probability
Likelihood of an event occurring
Range: 0 ≤ P(A) ≤ 1
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Probability
Likelihood of an event occurring
Range: 0 ≤ P(A) ≤ 1
Complement: P(A') = 1 - P(A)
Addition Rule: P(A or B) = P(A) + P(B) - P(A∩B)
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Normal Distribution :
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Standard Normal: μ = 0, σ = 1
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percentile rank
portion of individuals in a distribution with scores less than/equal to the specific score
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unit normal table
list of proportions of the normal distribution for a full range of possible z-score values
Random Sampling
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- Equal chance of selection
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Sampling without Replacement.
selection process that does not require constant probabilities
independent random sampling
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Sampling with replacement - selection process that returns individuals to the population in order to keep probabilities from changing selection process wherein the probability of being selected stays constant from one selection to next
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