Statistics Flashcards

1441033165	unbiased	does not favor one over another; syn(s). impartial, neutral, objective	0
1441033166	Measure of Center	The mean and median are ways to measure the central position within that set of data. Syn. Measure of Central Tendency	1
1441033167	Box and Whisker Plot	A diagram that summarizes data using the median upper and lower quartile, and the extreme values (max and min #).	2
1441033168	5 number summary	Minimum Q1: lower quartile Q2: median Q3: upper quartile Maximum	3
1441033169	Mean Absolute Deviation (MAD)	The average distance of each data value from the mean is a gauge of "on average" how different the data values are from mean	4
1441033170	Measures of Variability	The spread of a set of data	5
1441033171	Range	A measure of spread for a set of data. Largest # - the smallest # = range	6
1441033172	Standard Deviation (SD)	The measure of how numbers spread out the numbers are.	7
1441033173	Variation	-the average of the squared differences from the mean - small variance means data is close to the mean. - a large variance means data is far the mean and spread out.	8
1453739506	Statistics	The study of data; how to collect, summarize, and present data observations.	9
1453739507	Mean	average (syn.); the sum of all the data points divided by the number of data points. is obtained by dividing the sum of observed values by the number of observations	10
1453739508	Median	the middle value in a sample of ordered values. If there are 2 middle values in the data set, add the 2 middle values together and divide by 2. Known as the 5oth percentile, half the values are above the median and half are below the median.	11
1453739509	Mode	is the value or object which occurs most frequently	12
1453739511	Population	a group of objects or people about which information is wanted	13
1453739512	Sample	is part of the population	14
1453739513	Random Sample	each item of the population has an equal chance of being selected	15
1453739514	Biased	makes one appear better than another	16