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### 15 Cards in this Set

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 Qualitative data deals with categories Quantitative data deals with numeric values (quantities) Chebyshev's theory (applies to any datd set regardless of shape etc.) At least 3/4 of the data will fall within 2 standard deviations of the mean At least 8/9 of the data will fall within 3 standard deviations of the mean Generally for any number k greater than 1 at least (1-1k2) of the datd will fall within k standard deviations of the mean Empirical Rule (only if have a symmetic, mound shapes distribution) approximately 68% of the data will fall within 1 standard deviation approximately 95% of the data will fall within 2 standard deviations approximately 99.7% (esentially all) of the data will fall within 3 standard deviations Union is the event that occurs if either A or B or both occure on a single performance of the experiment Intersection is the event that occurs if both A and B occur on a single perfomance of the experiment Compliment is merely the opposite of the event Compliment rule P(A) + P(A)C =1 since the probabbility of an event and the probability of its compliment are the only two possibilities they will always add up to one. Additive rule P(AUB)= P(A)+ P(B) -(PIA) mutually exculsive if AIB contains no smaple points that is A and B cannot occur at the same time. An event and its compliment will always be mutually exclusive discrete random variable one where there is a finite (and there for countable) number of distinct possible values. (0,1,2,3) continuous random variable one where for any two values of that variable there are an infinte number of other possible values in between. Binomial the experiement consists of n identical trials there are only two possible outcomes on each trial the probability of S remains the same form trial to trial the trials are independent the binomial randomm variable x is the number of sucesses in n trials Multiplicative rul PIA= P(A)P(B/A)= P(B)P(A/B) Be Faithful and Believe