WGU C955 - Module 4 Test Questions With Verified Answers

skewed right - Answer A skewed distribution where the long tail of the curve is on the positive side of the peak. skewness - Answer A measure of the degree to which a probability distribution "leans" toward one side of the average, where the median and mean are not the same. the Standard Deviation Rule - Answer A standard proportion or percentage of data points that lie within each standard deviation away from the mean for a normal distribution. symmetry - Answer The quality of the data having the same shape on both sides of the mean. skewed distribution - Answer A distribution that is not symmetrical but has a greater quantity of data on one side of the mean. stem plot - Answer A visual representation of data in which individual data points are plotted to the right of a vertical line, or chart, and the left (the "stem") shows the interval categories. numerical summary - Answer A number used to describe a specific characteristic about a data set. box plots - 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. reliable data - Answer Data is both consistent and repeatable. five-number summary - Answer The minimum, first quartile, median, third quartile, and maximum. A box plot represents the five numbers in a five-number summary. normal distribution - Answer A common type of distribution of data points that forms a bell shaped, symmetrical curve around the mean. 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 set's distribution. There are three main measures: mean, median, or mode. data set - Answer Any collection of numerical values, such as measurements, observations, or survey responses. skewed left - Answer A skewed distribution where the long tail of the curve is on the negative side of the peak. center - Answer One of three measures that describe what is "normal" in a data set: mean, median, or mode. minimum - Answer The smallest value in a set. histogram - Answer A graph that displays data through vertical bars that show the counts or