WGU Applied Healthcare Statistics

whole numbers - answer-Numbers that do not contain decimals or fractions Integers - answer-Whole numbers and their opposites rational numbers - answer-All positive and negative integers, fractions and decimal numbers. Real numbers - answer-Any number that can be placed on a number line. Including numbers that do not end, and number like pi A Set - answer-A collection of numbers Discrete - answer-Values that are distinct, separate and unconnected Continuous - answer-Values in a set that are connected, without gaps Quantitative Data - answer-Consists of data values that are numerical, representing qualities that can be counted or measured Categorical data - answer-Also called qualitative data. Consists of data that are groups, such as names or labels, and are not necessarily numerical. Graphical displays - answer-Visual displays of data sets data set - answer-Any collection of numeric values, such as measurements, observations, or survey responses Distribution - answer-An arrangement of values that illustrates their frequency or occurrence Pie chart - answer-A graphical display that shows data in categories as percentages of a circle Bar chart - answer-A graph that displays data that is distributed over groups or categories Relative frequency - answer-A way to approximate a percentage by dividing the number of times an event occurred in an experiment by the total number of trials. frequency distribution - answer-A record of the number of times data occurs within a certain category Dot plot - answer-A graphical representation of data that plots the frequency of data along a horizontal line Outliers - answer-An observation point (number) that is significantly distant from the other observations in the dataset Stem plots - answer-A visual representation of data in which individuals data points are plotted to the right of a horizontal line, or chart, and the left (the "stem") shows the interval categories Box plot - answer-A graphical rendering of the range and the first and third quartiles of a data set with the data set's median in between Measure of central tendency - answer-A summary measure that is used to describe an entire set of data with one value that represents the middle or center of the data sets distribution. There are 3 main measures: mean, median or mode Histogram - answer-A graph that displays data through vertical bars that show the counts or numbers in each range Shape - answer-The outline of a set of data displayed on the coordinate axes Scale - answer-The relationship between units and their visual representation on a graph Check sheet - answer-A structured form or table that allows data to be collected by marking how often an event has occurred in a certain interval