# math

math

StatCrunch project 1
Name
230
150
130
231
225
165
206
127
112
135
150
210
130
160
210
160
162
105
195
144
178
115
212
170
190
108.6

1. Given our class weight sample in weight.txt, answer the following:
a. Min
b. Max
c. Range
d. Median
e. First Quartile
f. Third Quartile
g. 15 percentile
h. 85 percentile
i. Sample mean
j. Sample variance
k. Sample standard deviation
l. generate a table of relative frequency (take the default bin size)
m. generate a table of cumulative relative frequency (take the default bin size)
n. Generate a histogram of relative frequency with bin width = 5 pounds
o. Generate a histogram of relative frequency with bin width = 10 pounds
p. Generate a histogram of relative frequency with bin width = 15 pounds
q. Is the histogram symmetric, skew to the left or skew to the right?
2. Take the dataset RATMAZE from Chapter 2 Example/Statcrunch , answer the following
a. Min
b. Max
c. Range
d. Median
e. First Quartile
f. Third Quartile
g. 20 percentile
h. 95 percentile
i. Sample mean
j. Sample variance
k. Sample standard deviation
l. Generate a histogram of relative frequency with bin width = 0.5
m. Generate a histogram of relative frequency with bin width = 1
n. Is the histogram symmetric, skew to the left or skew to the right?
3. Take the dataset GALAXY2 from Chapter 2 Exercise/statcrunch, answer the following
a. Min
b. Max
c. Range
d. Median
e. First Quartile
f. Third Quartile
g. 35 percentile
h. 90 percentile
i. Sample mean
j. Sample variance
k. Sample standard deviation
l. Generate a histogram of relative frequency with bin width = 500
m. Generate a histogram of relative frequency with bin width = 1000
n. Is the histogram symmetric, skew to the left or skew to the right?

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