If a graph is skewed - Study guides, Class notes & Summaries

Descriptive statistics o :## describe a sample Inferential statistics o :## make inferences about a population from a sample What are the three measures of central tendency? o :## mean, median, and mode When is the mean not the best measure of central tendency? o :## when there are outliers; they will skew the mean When is the mode the most useful measure of central tendency? o :## when describing frequency data Range o :## the distance between the lowest and highest scores (taking in...

Marginal Distribution correct answer: The distribution of values of a variable among all individuals described by the table. (Percent of something out of the total) Conditional Distribution correct answer: The distribution of values of a variable among individuals who have a specific value of another variable. (Percent of a specific something out of that specific total) Association correct answer: When specific values of one variable tend to occur in common with specific values of anoth...

: the mean and standard deviation are the natural measures of center and spread for an important kind of symmetric distribution, called the _____ - ️️Normal distribution . The median is the ________, the value that separates the smaller half of the observations from the larger half - ️️midpoint "_______?" is the first question you should ask when someone throws a number at you - ️️Where do the data come from • A specific Normal curve is completely described by giving its...

ETS Major Field Test (Practice Test): Bachelor's Degree in Business. The common characteristic possessed by all assets is a) Long life b) Great monetary value c) Tangible nature d) Future economic benefit Which Foreign Direct Investment (FDI) attempts to acquire particular resources at a lower real cost than could be obtained in the home country? a) Market-seeking FDI b) Efficiency-seeking FDI c) Resource-seeking FDI d) Strategic asset-seeking FDI Under the Uniform Comm...

WGU C955 - Module 4: Descriptive Statistics for a Single Variable, Top Exam Questions and answers, graded A+ If 200 people are surveyed, how many claim to have had no exercise? {{ Pie chart reflecting the average number of hours exercised per week. No exercise 36%, 1 - 2 hours 28%, 3 - 4 hours 12%, 4 - 5 hours 10%, 5 - 6 hours 8%, 6 - 7 hours 4%, more than 7 hours 2%. }} a 18 b 36 c 72 d Cannot determine - -72 Determine the range for the following data set. {1,24,26,28,32,36...

How do you check if there is outliers?calculate IQR; anything above Q3+1.5(IQR) or below Q1-1.5(IQR) is an outlier If a graph is skewed, should we calculate the median or the mean? Why?median; it is resistant to skews and outliers If a graph is roughly symmetrical, should we calculate the median or the mean? Why?mean; generally is more accurate if the data has no outliers What is in the five number summary?Minimum, Q1, Median, Q3, Maximum Relationship between variance and standard devia...

Business (Intelligence) Analytics Final Exam 2024 || All Questions & Solutions (Rated A+) Business (Intelligence) Analytics Final Exam 2024 || All Questions & Solutions (Rated A+) Histogram - ANSWER - a graph for a quantitative variable; we usually slice up all the possible values into bins and then count the number of cases that fall in each bin Relative frequency histograms - ANSWER - percentages of each bin in the histogram Stem-and-leaf displays - ANSWER - are like histograms, but ...

BMAL-590 Quantitative Research Questions With Solutions Histogram (or bar graph) can show if the data is evenly distributed across the range of values, if it falls symmetrically from a center peak (normal distribution), if there is a peak but the more of the data falls on one side of the peak than the other (a skewed distribution), or if there are two or more peaks in the data (bi- or multi-modal). average mean range calculated by subtracting the smallest number from the largest. mod...

What is a dotplot? correct answer: A graphical display which shows "dots" for each point. It's good for categorical data- ie data classified into categories. What's the difference between categorical and quantitative data? correct answer: Categorical data fits into various categories; whereas, quantitative data has numerical values associated with it. What is a bar chart? correct answer: A display for categorical data which indicates frequencies or percents for each category. Wha...

EXST 2201 FINAL EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ Why is it important to look at the shape of a column of data before interpreting any statistics? To see if the data is unimodal, symmetrical, and without any exceptions. Why look at a chart to get shape information instead of looking at the data values themselves? A chart is needed to summarize the shape characteristic so that we can see it. Match the two meanings below with their appropriate column titles in a ...