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Statistics Ch.2 APSU Math 1530-
Actual Questions And Correct
Solutions
Dot plot - correct-answer -a statistical chart consisting of data points plotted on a
fairly simple scale, typically using filled in circles.
Stem-and-leaf plot - correct-answer -A plot where each data value is split into a
"leaf" (usually the last digit) and a "stem" (the other digits). For example "32" is
split into "3" (stem) and "2" (leaf). The "stem" values are listed down, and the
"leaf" values are listed next to them
Histograms - correct-answer -a display of statistical information that uses
rectangles to show the frequency of data items in successive numerical intervals
of equal size. In the most common form of histogram, the independent variable is
plotted along the horizontal axis and the dependent variable is plotted along the
vertical axis.
Distribution - correct-answer -a table or an equation that links each outcome of a
statistical experiment with its probability of occurrence.
, 2
Unimodal - correct-answer -a distribution with one clear peak or most frequent
value. The values increase at first, rising to a single peak where they then
decrease.
Bimodal - correct-answer -a continuous probability distribution with two different
modes.
Symmetric - correct-answer -a situation in which the values of variables occur at
regular frequencies, and the mean, median and mode occur at the same point.
Skewed to the left - correct-answer -the mean is typically lower than the median
Skewed to the right - correct-answer -the mean is typically greater than the
median.
Time/Trend plot - correct-answer -displays values against time.
Statistics Ch.2 APSU Math 1530-
Actual Questions And Correct
Solutions
Dot plot - correct-answer -a statistical chart consisting of data points plotted on a
fairly simple scale, typically using filled in circles.
Stem-and-leaf plot - correct-answer -A plot where each data value is split into a
"leaf" (usually the last digit) and a "stem" (the other digits). For example "32" is
split into "3" (stem) and "2" (leaf). The "stem" values are listed down, and the
"leaf" values are listed next to them
Histograms - correct-answer -a display of statistical information that uses
rectangles to show the frequency of data items in successive numerical intervals
of equal size. In the most common form of histogram, the independent variable is
plotted along the horizontal axis and the dependent variable is plotted along the
vertical axis.
Distribution - correct-answer -a table or an equation that links each outcome of a
statistical experiment with its probability of occurrence.
, 2
Unimodal - correct-answer -a distribution with one clear peak or most frequent
value. The values increase at first, rising to a single peak where they then
decrease.
Bimodal - correct-answer -a continuous probability distribution with two different
modes.
Symmetric - correct-answer -a situation in which the values of variables occur at
regular frequencies, and the mean, median and mode occur at the same point.
Skewed to the left - correct-answer -the mean is typically lower than the median
Skewed to the right - correct-answer -the mean is typically greater than the
median.
Time/Trend plot - correct-answer -displays values against time.
