Maajin Koyon Korafi Na {0}

Bayani Gaba-gaba

To compare two groups fairly, one number is rarely enough. You need a measure of the center (where the data sits) and a measure of the spread (how varied it is). Only together do they tell the full story.

In this lesson you will compare data sets using a measure of center (mean or median) and a measure of spread (range or interquartile range), drawing clear conclusions about how two groups differ.

Nazarin Darasi

Barka da kammala darasi akan Compare Data Sets Using Centre And Spread. 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.

To compare two data sets fairly you should use: A. only an average B. only the range C. a measure of center and a measure of spread D. only the mode Answer: C
Class A scores 5,5,5,5,5 and Class B scores 1,3,5,7,9. The means are: A. different B. both 5 C. both 3 D. both 9 Answer: B
The range of Class B (1,3,5,7,9) is: A. 0 B. 5 C. 8 D. 9 Answer: C
Two data sets with the same mean but different spreads are: A. identical B. equally consistent C. different in how varied they are D. impossible Answer: C
A smaller spread means the data is: A. larger on average B. more consistent C. less reliable D. higher Answer: B