Cov txheej txheem:

Dab tsi yog whisker hauv lej?
Dab tsi yog whisker hauv lej?

Video: Dab tsi yog whisker hauv lej?

Video: Dab tsi yog whisker hauv lej?
Video: Ua Dab Tsi Txhaum Koj - David Yang (New Song 2021) 2024, Kaum ib hlis
Anonim

lej Phau ntawv txhais lus: Box-and- Whisker Lub phiaj xwm. Box-thiab- Whisker Lub ntsiab lus: ib txoj hauv kev nraaj los tso saib qhov nruab nrab, quartiles, thiab qhov kawg ntawm cov ntaub ntawv teev rau ntawm tus lej kab los qhia kev faib cov ntaub ntawv.

Yog li ntawd, dab tsi yog ib tug whisker zajlus nyob rau hauv lej?

Ib lub thawv thiab whisker zaj (qee zaum hu ua a boxplot ) yog ib daim duab uas nthuav tawm cov ntaub ntawv los ntawm tsib lub ntsiab lus. Hauv ib lub thawv thiab whisker zaj : qhov kawg ntawm lub thawv yog lub sab sauv thiab qis qis, yog li lub thawv spans lub interquartile ntau yam. qhov nruab nrab yog cim los ntawm ib txoj kab ntsug hauv lub thawv.

Tsis tas li ntawd, quartiles suav li cas? Quartiles yog qhov tseem ceeb uas faib cov npe ntawm cov lej rau hauv peb lub hlis twg: Muab cov npe ntawm cov lej hauv kev txiav txim. Tom qab ntawd txiav cov npe rau hauv plaub qhov sib npaug.

Hauv qhov no, tag nrho cov quartiles yog nyob nruab nrab ntawm tus lej:

  1. QAB 1 (Q1) = (4+4)/2 = 4.
  2. Quas 2 (Q2) = (10+11)/2 = 10.5.
  3. QAB 3 (Q3) = (14+16)/2 = 15.

Yog li ntawd, ua li cas koj ua lub thawv thiab whiskers?

Cov kauj ruam

  1. Sau koj cov ntaub ntawv.
  2. Npaj cov ntaub ntawv los ntawm tsawg mus rau qhov loj tshaj plaws.
  3. Nrhiav qhov nruab nrab ntawm cov ntaub ntawv teev.
  4. Nrhiav thawj thiab thib peb quartiles.
  5. Kos ib zaj duab xis kab.
  6. Kos koj thawj, thib ob, thiab thib peb quartiles ntawm kab lus.
  7. Ua ib lub thawv los ntawm kos kab kab rov tav txuas cov quartiles.
  8. Kos koj tus kheej.

Koj pom q1 thiab q3 li cas?

Q1 yog qhov nruab nrab (qhov nruab nrab) ntawm qis ib nrab ntawm cov ntaub ntawv, thiab Q3 yog qhov nruab nrab (qhov nruab nrab) ntawm ib nrab ntawm cov ntaub ntawv. (3, 5, 7, 8, 9), | (11, 15, 16, 20, 21). Q1 = 7 thiab Q3 = 16. Kauj Ruam 5: Tshem tawm Q1 los ntawm Q3.

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