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stattrek.com

Statistics and Probability

Global Rank: #152,618

free tutorials cover ap statistics, probability, survey sampling, regression, anova, and matrix algebra. written and video lessons. online calculators.

Total Visits

297K

Avg. Visit Duration

1:20

Pages per Visit

2.10

Bounce Rate

57.64%

Registration Date

2004-06-21
Visit Trends
Recent website traffic trends over time
MonthTraffic
2025-02334.681
2025-03318.656
2025-04296.627
Traffic Sources
Main traffic sources for this website
SourceTraffic Share
search67.16%
direct26.99%
referrals4.29%
social1.26%
paid referrals0.19%
mail0.08%
Region Distribution
Geographic distribution of website visitors
RegionPercentage
United States40.84%
United Kingdom5.60%
Canada3.89%
Australia2.71%
India2.25%
Top Keywords
Main keywords driving traffic to this website
KeywordTrafficVolumeCPC
binomial distribution calculator3,00030,000$2.48
binomial calculator1,40514,050$1.81
normal distribution calculator2,46324,630$1.38
hypergeometric distribution2,94329,430$0.17
hypergeometric calculator1,14711,470$1.48