WGU C207 Data Driven Decision Making Module 2 with complete solutions

Confidence Interval CORRECT ANSWERS: An interval estimate used to indicate reliability Probability Density Function CORRECT ANSWERS: Often used to represent probabilities of continuous data; gives the probability that a continuous random variable is equal to the area below it Standard Deviation CORRECT ANSWERS: The square root of the variance; a measure of how spread out the numbers are Histogram CORRECT ANSWERS: A graph that displays continuous data. This type of graph has vertical bars that show the counts or numbers in each range of data. Sampling with replacement CORRECT ANSWERS: When a piece of the population can be selected more than once Percentile CORRECT ANSWERS: The value at which a certain percentage of the sample or population fall below Median CORRECT ANSWERS: The value or quantity lying at the midpoint of a frequency distribution Scatter diagram CORRECT ANSWERS: A graphic that uses dots to show relationships or correlations between variables Multiplication Principle CORRECT ANSWERS: When the probabilities of multiple events are multiplied together to determine the likelihood of all of those events occurring Range CORRECT ANSWERS: The difference between the minimum and maximum value in a given measurable set Variance CORRECT ANSWERS: A statistical measure of the spread or dispersion of a set of data Alternative Hypothesis CORRECT ANSWERS: The argument that typically states that the sample is not equal to the hypothesized null sample Event CORRECT ANSWERS: An outcome that occurs Trial CORRECT ANSWERS: An experiment, a test of the performance or qualities of something or someone