Relationship Between Two Quantitative Variables: The Correlation
Data Entry, Descriptive Statistics & Scatterplot
Bootstrap Distribution
Permutation Distribution
Enter Data:
From Textbook
Your Own
Choose Dataset:
Organic Foods
Internet & Facebook
Buchanan and Perot
Gas Mileage and Weight
Broadband and GDP
Carbon Footprint
Self-Esteem
Eating Disorders
Animal Longevity
Mountain Bike
Subway Sandwiches
Weekly Exercise Hours
Tour de France Performance
Beer Alcohol & Calories
Fuel Efficiency (nonlinear)
Use ID Variable
Name of ID Variable:
Name of X-Variable:
Name of Y-Variable:
Copy and paste columns from a spreadsheet, or enter observations directly:
Submit Data
Statistic for Relationship:
Pearson Correlation Coefficient
Spearman Correlation Coefficient
Kendall's Tau
Options:
Smooth Trend
Linear Trend
Enable Dragging/Deleting of Points
Standardize Variables
Edit Title & Subtitle
Title:
Subtitle:
Descriptive Statistics:
Statistic for Describing Relationship:
Pearson Correlation Coefficient
Spearman Correlation Coefficient
Kendall's Tau
Select how many bootstrap samples you want to generate:
1
100
1,000
10,000
Draw Bootstrap Sample(s)
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Options:
Summary Statistics of Bootstrap Distb.
Observed Stat
Bootstrapped Stat
Find Confidence Interval & Percentiles
Select Percentiles:
0
100
2.5
97.5
2.5 — 97.5
0
10
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70
80
90
100
Show Generated Bootstrap Statistics
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0.005
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0
0.01
0.005
0.015
0.025
0.035
0.045
0.055
0.065
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0.095
0.1
Show Normal Approximation
Adjust Range of x-Axis (Zoom-In)
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Fix Random Seed (For Reproducibility)
Download Histogram
Original Dataset:
Dataset From Last Bootstrap Sample:
Summary Statistics for Bootstrap Distribution:
Bootstrap Percentile Confidence Interval:
Percentiles of Bootstrap Distribution:
Statistic for describing relationship:
Pearson Correlation Coefficient
Spearman Correlation Coefficient
Kendall's Tau
Select how many permutations you want to generate:
1
100
1,000
10,000
Generate Permutation(s)
Reset
Permute values of:
X-Variable
Y-Variable
Options:
Show value of correlation from observed data
Show value of correlation from last permutation
Show statistical summary of permutation distribution
Find quantiles of permutation distribution
Select Percent:
0
100
2.5
97.5
2.5 — 97.5
0
10
20
30
40
50
60
70
80
90
100
Show on Histogram
Change binwidth of histogram
Select Binwidth:
0.005
0.1
0
0
0.05
0.005
0.015
0.025
0.035
0.045
0.055
0.065
0.075
0.085
0.095
0.1
Adjust range of x-axis
Select Range:
-1
1
-1
1
-1 — 1
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Download Histogram
Original Dataset:
Dataset From Last Permutation: