AP Statistics 1 Review Flashcards

5539436439	Individuals	Objects described by a set of data	0
5539436440	Variable	Any characteristic of an individual. Can take different values for different individuals	1
5539436441	Categorical Variable	Places an individual into one of several groups or categories	2
5539436442	Quantitative Variable	Takes numerical values for which it makes sense to find an average	3
5539436443	Distribution	Tells us what values the variable takes and how often it takes these values	4
5539436444	Pie Chart	...	5
5539436445	Bar Graph (or Bar Chart)	...	6
5539436446	Marginal Distribution	Distribution of values of that variable among all individuals described by the table	7
5539436447	Conditional Distribution	Describes the values of that variable among individuals who have a specific value of another variable. There is a separate conditional distribution for each value of the other variable	8
5539436448	Frequency	how often something happens	9
5539436449	Relative Frequency	how often a specific event occurred compared to the total number of events	10
5539436450	Two-way Table	...	11
5539436451	Association	There is association if knowing the value of one variable helps predict the other	12
5539436452	Segmented Bar Graph	...	13
5539436453	Side by Side bar graph	...	14
5539436454	Dot plot	...	15
5539436455	Overall Pattern	Described by shape, center, and spread out, plus outliers	16
5539436456	Shape	Peaks, clusters, gaps, outliers, symmetry, skews	17
5539436457	Center	Midpoint	18
5539436458	Spread	Range	19
5539436459	Outliers	A value is an Outlier if it's more than 1.5 * IQR above the third quartile or below the first quartile	20
5539436460	Symmetry	the same on both sides of the center	21
5539436461	Skew	lower on that side	22
5539436462	Unimodal	Only one mode, single peak	23
5539436463	Bimodal	Two clear peaks	24
5539436464	Multimodal	More than two clear peaks	25
5539436465	Stem plot	...	26
5539436466	Histogram	...	27
5539436467	Departure	Outlier	28
5539436468	Mode	most often occurring value	29
5539436469	Mean	Sum of all observations / number of observations	30
5539436470	Median	Midpoint, to find arrange value from smallest to largest and find the center, if the number of values is even there will be two centers, so find the average of the centers	31
5539436471	Range	Smallest value subtracted from largest value	32
5539436472	Interquartile Range (IQR)	1/4 of the way up the values, so the median between the first value and median	33
5539436473	Second Quartile (Q2)	Median	34
5539436474	Third Quartile (Q3)	3/4 the way up the values, so the median between the median and last value	35
5539436475	Interquartile Range (IQR)	First Quartile subtracted from the Third Quartile, Q3 - Q1	36
5548090476	Five Number Summary	Smallest observation, first Quartile, median, third quartile, largest observation, written from smallest to largest	37
5548090477	How to make a box plot	A central box is drawn from the first Quartile to the third quartile A line in the box marks the median Lines (called whiskers) extend from the box out to the smallest and largest observations that are not outliers Outliers are marked with a special symbol such as an asterisk	38
5548090478	Standard deviation	Measures the typical distance of the values in a distribution from the mean Square root of the variance	39
5548090479	Variance	Average squared deviation	40
5548090480	How to Organize a Statistics Problem	State: What's the question you're trying to answer? Plan: How will you go about answering the question? What statistical techniques does this problem call for? Do: Make graphs and carry out needed calculations. Conclude: Give your conclusion in the setting of the real-world problem.	41
5548090210	Five Number Summary	Smallest observation, first Quartile, median, third quartile, largest observation, written from smallest to largest	42
5548090211	How to make a box plot	A central box is drawn from the first Quartile to the third quartile A line in the box marks the median Lines (called whiskers) extend from the box out to the smallest and largest observations that are not outliers Outliers are marked with a special symbol such as an asterisk	43
5548090212	Standard deviation	Measures the typical distance of the values in a distribution from the mean Square root of the variance	44
5548090213	Variance	Average squared deviation	45
5548090214	How to Organize a Statistics Problem	State: What's the question you're trying to answer? Plan: How will you go about answering the question? What statistical techniques does this problem call for? Do: Make graphs and carry out needed calculations. Conclude: Give your conclusion in the setting of the real-world problem.	46