Dot Plot | 5 Number Summary | Graphs | Histogram | Stemplot |
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What is a dotplot?
A simple graph that shows each data value as a dot above its location on a number line
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What is it composed of?
minimum, first quartile, median, third quartile, & the maximum
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What is right skewed?
All data is on the left
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What is a histogram?
Made up of columns plotted on a graph, no space between adjacent columns
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What is a stemplot?
A different kind of graphical display, shows exact values of individual observations.
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What is one was to describe a dotpot?
Shape
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What is the minimum/ maximum?
take the lowest/ highest value in your set of data
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What is left skewed?
All data is on the right
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What is each column defined by?
Each column represents a group defined by a quantitative variable.
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What is stems?
The entries on the left
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What is one way to describe a dotplot?
Center
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What is the Q1?
Find the median of your set then find the median from that value and your minimum
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What is strong positive and linear?
The data shown id a straight line will all data closely following in a positive direction
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What is seen by looking at a histogram?
Shape
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What is leaves?
The entries on the right
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What is one was to describe a dotplot?
Spread
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What is the Q3?
Find the median between the maximum and median value
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What is symmetric distribution?
A distribution whose shape is uni-modal and each side is roughly a mirror image of the other
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What is another way to describe the shape?
Right/left skewed
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What is measured by the stems and leaves?
Stems and leaves could be other units like millions, thousands, ones, tenths, etc.
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What is one was to describe a dotplot?
Outliers
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What is the IQR from this?
Subtract you Q3 from your Q1
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What is uniform distribution?
A distribution whose shape is evenly distributed throughout the values it takes
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What is the skewness of a histogram?
The tendency of the observations to fall more on the low end or the high end of the X axis.
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What is seen easily on a stemplot?
Outliers
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