AP Stats Review Flashcards

5841061188	Mean	The mathematical average	0
5841062588	Standard Deviation	Variance about the mean	1
5841067290	Box and Whiskers	5 number summary	2
5841081059	Q2	Median	3
5841083100	Q1	25%ile	4
5841085154	Q0	Minimum	5
5841087225	Q4	Maximum	6
5841090653	Q3	75%ile	7
5841095480	Interquartile Range	Middle 50%	8
5841100554	z-score	Standard score	9
5841112259	Percentile	A location in a distribution	10
5841124523	Add the counts in the frequency column	Cumulative Frequency	11
5841133105	Positive Skew	The tail points to the right	12
5841136024	Negative Skew	The tail points to the left	13
5841141762	3 SD from the mean	99% of population	14
5841142960	2 SD from the mean	95% of population	15
5841144994	1 SD from the mean	68% of population	16
5841157250	Direct Relationship	As one variable increases, so does the other variable	17
5841162094	Indirect Relationship	As one variable increases, the other decreases	18
5841169973	Meaningfulness	The amount of variance in one variable accounted for by the other variable	19
5841176145	The picture depicts a correlation of approximately	.2	20
5841190277	Yp = aX + b, where a =	Slope	21
5841192939	Yp = aX + b, where b =	The y-intercept	22
5841198554	Yp = aX + b, where X =	The score	23
5841204846	The picture depicts a correlation of approximately	.9	24
5841215702	The picture depicts a correlation of approximately	-.9	25
5841226185	Sample	Part of the population	26
5841234401	Convenience Sample	Individuals that are easy to reach	27
5841240035	Voluntary Response Sample	People who choose themselves	28
5841244392	Simple Random Sample	Individuals from a population who have an equal chance to be sampled	29
5841253603	Stratified Random Sample	First classify population and then assign groups with equal chance	30
5841259102	Cluster Sample	Put population into groups and then sample with SRS	31
5841280717	Double-Blind	Neither subjects or researchers know who has received what treatment	32
5841294946	Probability	Chance process between 0 and 1	33
5841320205	Discrete Random Variable	If all possible outcomes can be listed	34
5841330410	Continuos Random Variable	Arise from measuring something	35