Part 1: Ways of Visualizing Data
A.
On the
right-hand side construct a stem and leaf plot for the following data:
64
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98
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96
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93
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70
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97
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74
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67
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63
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71
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80
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57
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80
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77
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43
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67
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78
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52
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65
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92
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53
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65
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87
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62
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65
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43
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64
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66
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64
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50
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Using your
stem and leaf plot identify the range of the data: _____________
B.
Next create a
histogram to represent this data. You may choose as many bins as you would
like, though 10 is normally the ideal number.
a.
Indicate the
number of bins for your histogram: ________
b.
What size should
your intervals be? Show your calculations: ______________________________
c.
Fill out the
following table to indicate your midpoints and intervals, which will serve as
bins
Midpoints
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Bins/Intervals
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Frequency
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d.
Use the table
you constructed in part c to create your histogram. Label each part. Indicate
your intervals below the histogram and have each bin be two squares wide. Use
the graph paper below
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e.
Is the graph
skewed? Is it unimodal or bimodal?
f.
Are 10 bins appropriate in this circumstance? Does it
show enough variation in the data, or should be make fewer/more bins?