2020λ…„ 10μ›” 4일 μΌμš”μΌ

FOUR CARDINAL RULES OF STATISTICS πŸ“ˆπŸ“ŠπŸ“‰ A thread 1/🧡

λŒ“κΈ€ μ—†μŒ:

λŒ“κΈ€ μ“°κΈ°