UNR, MATH/STAT 352, Spring 2007
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Probability and Statistics. MATH/STAT 352. Spring 2007. Lecture 3: Numerical summaries Simple Graphs. UNR, MATH/STAT 352, Spring 2007. Sample 1. Different locations!. Measurement. Sample 2. Measurement. UNR, MATH/STAT 352, Spring 2007. Sample 1. Measurement. Sample 2. - PowerPoint PPT Presentation
Transcript of UNR, MATH/STAT 352, Spring 2007
UNR, MATH/STAT 352, Spring 2007
UNR, MATH/STAT 352, Spring 2007
Measurement
Measurement
UNR, MATH/STAT 352, Spring 2007
Measurement
Measurement
UNR, MATH/STAT 352, Spring 2007
UNR, MATH/STAT 352, Spring 2007
N=76, Sample mean = 6.66, Median = 7Sample St. Dev. = 3.516, Q1=3, Q3=10
IQR=Q3-Q1=7
UNR, MATH/STAT 352, Spring 2007
N=76, Sample mean = 1.536, Median = 0.65Sample St. Dev. = 5.892, Q1=0.01, Q3=0.95
IQR=Q3-Q1=0.94
UNR, MATH/STAT 352, Spring 2007
N=500, Sample mean = -0.02, Median = 0.03Sample St. Dev. = 1.02, Q1=-0.64, Q3=0.67
IQR=Q3-Q1=1.31
UNR, MATH/STAT 352, Spring 2007
N=37, Sample mean = 91.62, Median = 92.0Sample St. Dev. = 6.54, Q1=87.5, Q3=96.0
IQR=Q3-Q1=8.5
UNR, MATH/STAT 352, Spring 2007
John Wilder Tukey (June 16, 1915 - July 26, 2000)
UNR, MATH/STAT 352, Spring 2007
UNR, MATH/STAT 352, Spring 2007
3-rd quartile, Q3
1-st quartile, Q1
Maximal data point within 1.5 IQR of Q3
Mimimal data point within 1.5 IQR of Q1
Outliers
median
UNR, MATH/STAT 352, Spring 2007
UNR, MATH/STAT 352, Spring 2007
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