Define mid-value. Nws yog tus nqi nruab nrab ntawm qhov txwv sab sauv thiab qis ntawm chav kawm.
Tus nqi nruab nrab ntawm chav kawm yog dab tsi?
Tus nqi nruab nrab yog tus nqi nruab nrab ntawm qhov txwv sab sauv thiab qis ntawm chav kawm.
Tus nqi nruab nrab yog dab tsi?
Qhov nruab nrab yog hom nruab nrab, lossis txhais tau tias. Cov khoom siv hluav taws xob hauv hluav taws xob qee zaum raug faib ua "midrange", txhais tau tias lawv nyob hauv tus nqi nruab nrab. Tus formula nrhiav tus midrange=(siab + low) / 2.
Koj pom tus nqi nruab nrab hauv chav kawm 10 li cas?
Tus nqi nruab nrab qhov zaus txuas ntxiv tuaj yeem pom los ntawm kev siv qhov nruab nrab ntawm qis thiab qis qis
- Mid nqi=
- Piv txwv 1: Chav kawm ncua ntawm 40≤x<45,. Qhov nruab nrab yog 42.5.
- Piv txwv 2: Chav kawm ncua ntawm 1.1≤x≤1.5,. Qhov nruab nrab yog 1.25.
- Piv txwv 3: Chav kawm ncua ntawm x<50… x<60.. …
- Example 4: Chav kawm ncua ntawm 20 < x < 30.
Tus nqi nruab nrab ntawm 10 txog 20 yog dab tsi?
Teb: tus nqi nruab nrab ntawm 10_20 yog 15 …
