WGU C955 - Module 4 Questions and
Answers 100% Accurate
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.
Answers 100% Accurate
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.
