Qhov ntau yog qhov kev ncua deb ntawm tus nqi siab tshaj mus rau tus nqi qis tshaj. Qhov Inter-Quartile Range yog qhov tseeb qhov ntau ntawm cov quartiles: qhov kev ncua deb ntawm qhov loj tshaj plaws quartile mus rau qhov tsawg tshaj plaws quartile, uas yog IQR=Q3-Q1.
Dab tsi yog qhov txawv ntawm qhov ntau thiab qhov sib txawv?
Thaum qhov ntau muab rau koj sib kis ntawm tag nrho cov ntaub ntawv teev, qhov kev sib cuam tshuam muab rau koj kev sib kis ntawm nruab nrab ib nrab ntawm cov ntaub ntawv teev.
Puas yog IQR ib tus lej lossis ntau yam?
Interquartile ntau yam yog qhov sib txawv, yog li qhov sib txawv ntawm peb thiab thawj quartiles IQR=Q3 - Q1. Yog li nws yog tus lej ib tus lej yog li qhov no yog qhov koj qhia nws.
Puas IQR ib txwm me dua li qhov ntau?
Interquartile ntau ib txwm me dua li qhov. Qhov tsib-ntu cov ntsiab lus ntawm cov qhab nia xeem hauv chav qhia kev txheeb cais yog: Min=23% Q1=71% Median=83%, Q3=86% thiab Max=100%.
Puas IQR ib txwm 50%?
Cov kev sib cuam tshuam suav nrog 50% ntawm cov ntaub ntawv hauv nruab nrab. Cov ntsiab lus qis thiab sab saud ntawm qhov nruab nrab 50% cheeb tsam no yog quartile 1 thiab quartile 3, feem.
