Kulesi sihloko sizokhuluma ngakho liyini i-frequency table? Ithebula lefrikhwensi iyithuluzi lezibalo elisetshenziselwa ukuhlela nokubonisa ukusatshalaliswa kwedatha ngesethi yamanani. Inikeza umbono ocacile futhi omfushane wokuthi inani ngalinye lenzeka kangaki kusethi yedatha. Lolu lwazi luwusizo ekuqondeni ukusatshalaliswa kwedatha nokuhlonza amaphethini noma amathrendi. Kafushane, ithebula le-frequency lisivumela ukuthi sibuke futhi sihlaziye idatha ngokuhlelekile, okubalulekile ekuhlaziyweni kwezibalo.

1. Isinyathelo ngesinyathelo ➡️ Liyini ithebula le-frequency?

Iyini ithebula lemvamisa?

A ithebula lemvamisa Kuyindlela yokuhlela nokwethula idatha ngezibalo. Ikuvumela ukuthi ubone ngeso lengqondo futhi uhlaziye ukusatshalaliswa kwedatha kusampula noma inani labantu. Inikeza ulwazi mayelana nokuvama kwevelu ngayinye noma isigaba kusethi yedatha, esiza ukuhlonza amaphethini namathrendi.

• Isinyathelo 1: Qoqa idatha ofuna ukuyihlaziya. Kungaba izinombolo, amagama noma izigaba.
• Isinyathelo 2: Hlela idatha ibe imigqa namakholomu. Ikholomu yokuqala kufanele iqukathe amanani noma izigaba, kuyilapho ikholomu yesibili kufanele iqukathe amaza ahambisanayo.
• Isinyathelo 3: Bala ukuvama kwevelu ngayinye noma isigaba. Bala ukuthi inani ngalinye livela kangaki bese urekhoda lolu lwazi kukholamu yefrikhwensi.
• Isinyathelo 4: Inquma inani eliphelele lokubonwayo noma idatha. Engeza wonke amafrikhwensi ukuze uthole leli nani.
• Isinyathelo 5: Bala imvamisa ehlobene yenani ngalinye noma isigaba. Hlukanisa imvamisa yenani ngalinye ngenani eliphelele lokubhekwa futhi uphindaphinde ngo-100 ukuze uthole iphesenti.
• Isinyathelo 6: Yengeza umugqa ekupheleni kwethebula ukukhombisa amafrikhwensi anqwabelene. I-cumulative frequency iyisamba sawo wonke amafrikhwensi kuze kufike kulelo phuzu.
• Isinyathelo 7: Ukuze uthole isethulo esibonakalayo esicacile, ungamela ithebula lemvamisa kugrafu, njenge-histogram noma igrafu yebha.

Manje njengoba uyazi ukuthi yini a ithebula lemvamisa nokuthi ungayenza kanjani, ungasebenzisa leli thuluzi lezibalo ukuhlaziya amasethi akho wedatha futhi uthole ulwazi olubalulekile mayelana nokusatshalaliswa kwamanani noma izigaba!

Imibuzo Nezimpendulo

1. Liyini ithebula lefrikhwensi?

1. Ithebula lefrikhwensi liyindlela yokwethula idatha ngendlela ehlelekile nefingqiwe.
2. Isetshenziselwa ukubonisa inombolo yezikhathi inani ngalinye noma isigaba esenzeka ngaso kusethi yedatha.
3. Ikuvumela ukuthi ubone amaphethini noma amathrendi kudatha.
4. Kuyithuluzi eliyisisekelo kwizibalo nokuhlaziywa kwedatha.
5. Ithebula lefrikhwensi lenza kube lula ukuqonda ngokubonakalayo ukusatshalaliswa kwedatha.

2. Siyini isakhiwo sethebula lefrikhwensi?

1. Ithebula lefrikhwensi liqukethe amakholomu amabili ayinhloko: ikholomu eyodwa yezigaba noma amanani kanye nenye ikholomu yamafrikhwensi.
2. Ikholomu yezigaba ibala amanani ahlukene noma izigaba idatha engazithatha.




3. Ikholomu yefrikhwensi irekhoda inani lezikhathi inani ngalinye noma isigaba esivela kudatha.

3. Ithebula lefrikhwensi lisetshenziselwa ini?

1. Ithebula lefrikhwensi lisetshenziselwa ukuhlela nokufingqa idatha ngokubukeka.
2. Ikuvumela ukuthi ubone ukusatshalaliswa kwamanani noma izigaba kusethi yedatha.
3. Kwenza kube lula ukuqhathanisa imvamisa amanani ahlukene noma izigaba.
4. Kuyasiza ukuthola ama-outliers noma ama-outliers kudatha.
5. Isetshenziswa njengesiqalo sokunye ukuhlaziya kwezibalo okuthuthuke kakhulu.

4. Lakhiwa kanjani ithebula lefrikhwensi?

1. Ihlela idatha ngendlela ekhuphukayo noma eyehlayo, kuye ngohlobo lokuguquguquka.
2. Khomba izigaba ezahlukene noma amanani avela kudatha.
3. Dala ikholomu eyodwa yezigaba kanye nenye ikholomu yamafrikhwensi.
4. Bala inani lezikhathi isigaba ngasinye noma inani elivela ngazo bese ulibhala phansi kukholamu yefrikhwensi.
5. Qiniseka ukuthi ithebula lemvamisa lihlanganisa zonke izigaba noma amanani akhona kudatha.

5. Lihunyushwa kanjani ithebula lefrikhwensi?

1. Bheka ikholomu yefrikhwensi bese uqhathanisa amanani.
2. Khomba izigaba noma amanani anemvamisa ephezulu.




3. Bona ukuthi kukhona yini okungaphandle noma izigaba ezinefrikhwensi ephansi kakhulu.
4. Hlaziya amaphethini noma amathrendi ekusabalaliseni idatha ngokuya ngamafrikhwensi.
5. Sebenzisa ithebula lefrikhwensi ukuze uthole ukuqonda okujwayelekile kwedatha ngaphambi kokwenza ukuhlaziya okunemininingwane eyengeziwe.

6. Yiziphi izinhlobo zedatha ezingamelwa kuthebula lefrikhwensi?

1. Idatha yezinombolo noma yezigaba ingamelwa kuthebula lemvamisa.
2. Ngedatha yezinombolo, izigaba zingaba izikhawu noma ububanzi.
3. Ngedatha yezigaba, izigaba ziyizinketho ezihlukene noma amalebula idatha engawathatha.
4. Kubalulekile ukukhetha uhlobo olufanele lwethebula lemvamisa ngokusekelwe ohlotsheni lwedatha.

7. Uyini umehluko phakathi kwethebula le-absolute kanye ne-related frequency?

1. Ithebula le-absolute frequency libonisa inani lezikhathi inani ngalinye noma isigaba esivela kudatha.




2. Ithebula lemvamisa elihlobene libonisa amaphesenti noma ingxenye yezikhathi inani ngalinye noma isigaba esivela kudatha.
3. Zombili izinhlobo zamathebula efrikhwensi ziwusizo futhi zinikeza ulwazi oluhlukile mayelana nedatha.
4. Ithebula lefrikhwensi eliphelele libonisa ukusatshalaliswa kwamanani okunembile, kuyilapho ithebula lemvamisa elihlobene livumela amasethi ahlukene edatha ukuthi aqhathaniswe ngokufanele kakhulu.

8. Ingabe ithebula lefrikhwensi lingakwazi ukufaka amakholomu angaphezu kwamabili?

1. Yebo, ithebula lemvamisa lingafaka amakholomu angaphezu kwamabili.
2. Ngokungeziwe kukholomu yezigaba kanye nekholomu yefrikhwensi, amakholomu engeziwe angengezwa kuye ngezidingo noma izici zedatha.
3. Isibonelo, ikholomu yefrikhwensi eqoqwayo ingangezwa ukuze kuboniswe isamba esiqoqiwe samafrikhwensi.
4. Amakholomu angaphinda afakwe ukuze kuboniswe isihlobo noma imvamisa yephesenti, phakathi kwezinye izinketho.

9. Ithebula lefrikhwensi lingamelwa kanjani ngemidwebo?

1. Ithebula lefrikhwensi lingamelwa ngemifanekiso kusetshenziswa i-histogram, igrafu yebha, noma ishadi likaphayi.
2. I-histogram iwumfanekiso obonakalayo wokusatshalaliswa kwedatha kuthebula lemvamisa, lapho amabha amelela izigaba futhi ukuphakama kwawo kumelele imvamisa.




3. Ishadi lebha lifana ne-histogram, kodwa amabha awaxhunyiwe futhi awameleli izigaba ezilandelanayo.
4. Ishadi likaphayi, elaziwa nangokuthi ishadi likaphayi, libonisa ubukhulu besigaba ngasinye ngokuhlobene nengqikithi.

10. Itafula lefrikhwensi lingasetshenziswa kuphi?

1. Ithebula lefrikhwensi ingasetshenziswa emikhakheni ehlukahlukene, njengocwaningo lwesayensi, ezomnotho, ezokuthengisa kanye nesayensi yezokuhlalisana kwabantu.
2. Kuwusizo kunoma yisiphi isimo lapho udinga ukuhlaziya nokufingqa idatha ngendlela ehlelekile necacile.
3. Isetshenziswa ocwaningweni lwemakethe ukuhlaziya okuthandwa ngabathengi kanye nokuhlola impumelelo yemikhiqizo noma amasevisi.
4. Kusayensi yezenhlalo, isetshenziswa ukuhlaziya idatha izibalo zabantu, ukuziphatha komphakathi kanye nemibono yabantu.