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Bayani Gaba-gaba

A histogram looks like a bar chart, but when the class widths are unequal a fair picture needs the bars' areas, not their heights, to show the frequencies. The height then becomes the frequency density.

In this lesson you will draw and interpret histograms with unequal class intervals using frequency density.

Nazarin Darasi

Barka da kammala darasi akan Histograms With Frequency Density. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

On a histogram with unequal widths, the bar height represents: A. frequency B. frequency density C. class width D. the mean Answer: B
Frequency density equals: A. frequency x width B. frequency / class width C. width / frequency D. frequency + width Answer: B
A class of width 20 has frequency 30. Its frequency density is: A. 0.67 B. 1.5 C. 10 D. 600 Answer: B
On a histogram the frequency is given by the bar's: A. height B. width C. area D. colour Answer: C
A bar has height 2 over a width 10. The frequency is: A. 5 B. 12 C. 20 D. 0.2 Answer: C