Arre, frequency density nikalne ka tarika hai: you take the frequency and divide by the class width. Isse har unit pe barabar ki comparison hoti hai, warna unequal intervals ka histogram toota-phoota dikhega.
Yeh mere bete ke geography ke homework se aaya — unki kitaab mein population density bhi to aisi hi hoti hai na? Ek bada zila kam log, ek chota zila jyada log, to compare karne ke liye density nikalti hain.
Par meri zindagi yeh kehti hai ki school waale is calculation se zyada, asli density toh tab pata chalti hai jab ek room mein mere do bachchon ka jhagda aur ek aunti ki gup-shup ek saath chalu ho! Woh hisaab kitab se bahar ki baat hai.
#exams#study
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