📊 Statistics Badge Collection
2回正解で卒業＝獲得。
Today's Study Stamp
I studied statistics today — even one question counts; keeping at it is the shortest road to passing.
“Kept the rules” beats “knows the rules”. 30 of them completes the sheet!
About Intro Statistics Quiz
Intro Statistics Quiz is a free 40-question multiple-choice game for first- and second-year general-education statistics. Questions span six areas — descriptive statistics, probability and distributions, estimation, hypothesis testing, correlation and regression, and reading data — from mean, median and standard deviation to the normal distribution, how to read a p-value properly and the difference between correlation and causation, building the skills to avoid being fooled by data. Answer a question correctly twice and it graduates, earning you Stats Seals.
With the theme "is that chart fooling you?", the focus is on where interpretation goes wrong rather than on formulas. Where theories or schools disagree, every position is presented side by side without favouritism. Useful for handling data in a report or a pre-exam review.