Module 6: Statistics (A+ Graded 100% Verified)

Module 6: Statistics (A+ Graded 100% Verified) Data Ans: Information, especially numerical information. Usually organized for analysis. Mean Ans: The sum of a set of numbers divided by the number of elements in the set. (A type of average) Median Ans: The middle number in a data set when data is arranged from least to greatest; if the data set has an even number of items, find the mean of the two middle numbers. Mode Ans: The most frequently occurring number(s) or item(s) in a data set. Range Ans: The difference between the highest and lowest value in a data set. Statistics Ans: The science of collecting, organizing, representing, and interpreting data. Dot Plot Ans: Also known as a line plot. A diagram showing frequency of data on a number line. Histogram Ans: A bar graph in which the labels for the bars are numerical intervals. Measure of Center Ans: A value indicating the most typical representation of the data set; the average. Distribution Ans: A table that shows how many there are of each type of data. Gap Ans: A place on a graph where no data values are present. Measure of Variability Ans: A measure that describes how spread out or scattered a set of data is. Mean Absolute Deviation (MAD) Ans: The mean distance between each data value and the mean of the data. Statistical Question Ans: A question that has many different, or variable, answers. Box Plot Ans: A diagram that shows the five number summary of a distribution. (Five number summary includes lowest value, lower quartile, median, upper quartile, and highest value.) Interquartile Range Ans: The difference between the third and first quartile. Cluster Ans: A group of the same or similar elements gathered or occurring closely together on a graph. Lower Extreme Ans: The smallest or least number out of a data set, usually farther away from interquartile range than other data in the set. (Also known as minimum) Upper Extreme Ans: The greatest or largest number out of a data set, usually farther away from interquartile range than other data in the set. (Also known as maximum) Minimum Ans: The smallest amount; the smallest number in a data set. Maximum Ans: The largest amount; the greatest number in a data set. Outlier Ans: A number in a set of data that is much larger or smaller than most of the other numbers in the set. Spread Ans: A measure of how much a collection of data is spread out. Commonly used types include range and quartiles. (Also known as measures of variation or dispersion.) Lower Quartile Ans: The median of the lower half of the data. Upper Quartile Ans: The median of the upper half of the data. Statistical Variability Ans: A variability or spread in a variable or a probability distribution. Common examples of measures of statistical dispersion are the variance, standard deviation, and interquartile range.