Glossary

difficulty level

the percentage of students who answer it correctly. The final test is assembled with a carefully calibrated *mix* of difficulties:

Learn More

Introductory Statistics — Case Study 1: The Bell Curve in Standardized Testing — How SAT and ACT Scores Are Designed to Be Normal

Related Terms

"big data" "Comparing Multiple Groups: ANOVA." "given that..." "Holding other variables constant" "P-value explained properly" "The probability of WHAT given WHAT?" "This treatment cured 90% of patients" $\mu_0$ is NOT in the 95% CI

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