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Nishadi lissafi. talakawan

A lissafi, da ilmin lissafi talakawan da lambobi (ko talakawan) - Naira Miliyan Xari da duk lambobi a cikin wannan sa, raba da adadin su. Wannan shi ne mafi tartsatsi da kowa yana da ra'ayi na talakawan size. Kamar yadda ka sani, don nemo da talakawan darajar, shi ne zama dole a takaice duk data kana bukatar ka raba shi da yawan sharuddan.

Mene ne ilmin lissafi nufi?

Bari mu dubi wani misali.

Misali 1. Ganin lambobin 6, 7, 11. Muna bukatar samun su talakawan darajar.

Rarrabẽwa.

Don fara, sami Naira Miliyan Xari da duk lambobi daga bayanai.

6 + 7 + 11 = 24

Yanzu raba sakamakon adadin da yawan sharuddan. Tun da muna da uku sharuddan, bi da bi, mu raba ta uku.

24: 3 = 8

Saboda haka, da talakawan tamanin da lambobi 6, 7 da kuma 11 - shi ne 8. Me ya sa 8? Saboda adadin 6, 7 da kuma 11 za su zama kamar uku eights. Wannan a fili gani a hoto.

A talakawan darajar da ɗan kama da "leveling" na lambobin. Kamar yadda ka gani, wani gungu na pencils sun zama guda matakin.

La'akari da wani misali, ya ƙarfafa su sani.

Misali 2. Ganin lambobin: 3, 7, 5, 13, 20, 23, 39, 23, 40, 23, 14, 12, 56, 23, 29. Wajibi ne a sami su talakawan darajar.

Rarrabẽwa.

Mun sami jimla.

3 + 7 + 5 + 13 + 20 + 23 + 39 + 23 + 40 + 23 + 14 + 12 + 56 + 23 + 29 = 330

Raba da yawan sharuddan (a cikin wannan harka - 15).

330: 15 = 22

Saboda haka, da nufin darajar sa na lambobin ne daidai da 22.

Yanzu la'akari da korau lambobin. Ka tuna da yadda za a takaita su. Alal misali, kana da biyu lambobi ne 1 da kuma -4. Zai sami su jimla.

1 + (-4) = 1 - 4 = -3

Sanin wannan, bari mu duba wani misali.

Misali 3. Nemo nufin darajar lambobin: 3, -7, 5, 13, -2.

Rarrabẽwa.

Nemo Naira Miliyan Xari da lambobi.

3 + (-7) + 5 + 13 + (-2) = 12

Tun da sharuddan na 5, raba sakamakon adadin da 5.

12: 5 = 2,4

Saboda haka, ilmin lissafi nufin darajar 3, -7, 5, 13, -2 ne 2.4.

A zamanin yau, fasaha ci gaba ne yafi dace don amfani ga gano da talakawan darajar kwamfuta shirye-shirye. Microsoft Office Excel - daya daga cikinsu. Search talakawan darajar a Excel sauri da kuma sauƙi. Musamman, wannan shirin shi ne a kan Microsoft Office software kunshin. Ka yi la'akari da taƙaitaccen umarnin, da yadda za a sami ilmin lissafi nufin darajar da wannan shirin.

Domin yin lissafi da talakawan darajar da jerin lambobi, amfani da talakawan aiki. A ginin kalma domin wannan aiki:
= Average (argument1, argument2, ... argument255)
inda argument1, argument2, ... argument255 - yana da ko dai da lambobi ko cell nassoshi (for Kwayoyin nufi jeri kuma iri-iri).

Don yin shi mafi bayyana, za mu gwada ilmi tsiwirwirinsu.

  1. Shigar da lambar 11, 12, 13, 14, 15, 16 a cikin cell C1 - C6.
  2. Zabi cell C7, ta danna kan shi. A wannan wuri, za mu nuna da talakawan darajar.
  3. Click a kan "dabarbari" tab.
  4. Zaži Žari Ayyuka> ilimin kididdiga domin bude wani drop-saukar list.
  5. Zabi talakawan. Bayan wannan maganganu akwatin ya kamata bude.
  6. Zabi kuma ja zuwa cell C1-C6, to saka cikin kewayon a cikin maganganu akwatin.
  7. Tabbatar da your mataki ta hanyar latsa "Ok".
  8. Idan ka yi duk abin da daidai, da cell C7, ya kamata ka ganin wani martani - 13.7. Ta danna kan salula aiki C7 (= Average (C1: C6)) za a nuna a cikin dabara mashaya.

Sosai dace don amfani da wannan aikin to rikodin-kiyaye, Rasitan ko a lokacin da ka kawai bukatar samun da talakawan darajar mai dogon jerin lambobi. Saboda haka, an sau da yawa amfani a ofisoshin kuma manyan kamfanoni. Wannan ba ka damar adana domin na records, kuma ya sa ya yiwu da sauri sami wani abu (misali, da matsakaicin kudin shiga da watan). Har ila yau, da taimakon na'urar mai kwakwalwa, za ka iya samu talakawan tamanin da aiki.

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