Example of a Quantitative Variable - correct answer Age, Income
Example of a Categorical Variable - correct answer Religion, Zip Code, Rent vs Own
Example of a Binary Categorical Variable - correct answer Rent vs Own, Paid vs Not
What is the difference between Sorting and Filtering? - correct answer Sort puts things in different
orders whereas Filtering only shows the results you filtered for
What are some of the uses of Conditional Formatting? - correct answer Highlights cells with rules:
-Greater than/less than
-Top X%, Bottom X%
-Data Bars, Color Scales
For a Categorical Variable, what is the difference between a Frequency Distribution, a Relative Frequency
Distribution, and a Percent Frequency Distribution? - correct answer Frequency Distribution = How often
it shows up
Relative Frequency Distribution = How often it shows up in total-- #times/total
Percent Frequency Distribution = % of total that it makes up
What is the difference between Excel's COUNT, SUM & AVERAGE functions? - correct answer COUNT:
number of times something shows up
SUM: totals the numbers
AVERAGE: takes the average of the numbers
WHat is the difference between Excel's COUNTIF, SUMIF, & AVERAGEIF functions? - correct answer
COUNTIF: conditional counting
, SUMIF: conditional summation
AVERAGEIF: conditional averaging
What is the role of Bins when summarizing a quantitative variable with either a frequency distribution or
histogram? - correct answer Bins organize data so that it can be summarized into a frequency
distribution or histogram
For a Quantitative Variable, compare the information provided by using Excel's FREQUENCY function to
the information provided by using Excel to generate a Histogram - correct answer The FREQUENCY
function gives the data necessary to create a Histogram
What are the reasons to identify an outlier?(3) - correct answer Incorrectly included in data set
Typo in data
Fraudulent data
For a Quantitative Variable, what is the Interquartile Range? - correct answer Q3-Q1
How do you identify an Outlier using the Interquartile Range? - correct answer Upper Limit: Q3+1.5*IQR
Lower Limit: Q1 - 1.5*IQR
How do you Standardize the values for a data set's quantitative variable? - correct answer (Value -
mean)/STD of ALL
How do you identify an Outlier using the Empirical Rule for the Normal Distribution? - correct answer
(+)3 or (-)3 from the z-score = outlier
13. In a Box-and-Whisker Chart
What is represented by the box?
What is represented by the solid line within the box?
What is represented by the "x"?
What is represented by the two whiskers, including the solid line at the end of each whisker?