Chapter 6: Probability

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bag filled with 50 red candies and 50 blue candies; pick a single candy

population to sample

you pick 4 red candies out of a bag blindfolded; how many candies in the bag are red

sample to population

definition of probability

probability of any specific outcome is a fraction/proportion of all possible outcomes

probability of A

= (# of outcomes classified as A)/(total # of possible outcomes)

the unit normal table

complete listing of z-scores and proportions for a normal distribution; can use a z-score to find a proportion and vice versa