SD
Standard Deviation Calculator
Numbers ki list daalo — mean, variance aur standard deviation (population ya sample) turant pata karo.
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Input
Result
—
Standard Deviation
Count (n)—
Mean (average)—
Variance—
Sum—
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How to use — Standard Deviation Calculator
- Numbers paste karo — comma, space ya nayi line se alag kar sakte ho.
- Sample ya Population type choose karo (agar pata na ho to Sample default rakho).
- Mean, variance aur standard deviation turant mil jayenge.
FAQ
Standard deviation kya batata hai?
Data mean (average) ke aas-paas kitna phaila hua hai. Kam SD matlab values mean ke paas hain, zyada SD matlab widely spread hain.
Sample aur Population me kya farak hai?
Population = poora dataset (jaise pure class ke marks). Sample = usme se ek chhota hissa (jaise class ke 10 students). Sample formula me (n-1) use hota hai jo thoda bada estimate deta hai (Bessel's correction).
Variance aur SD me kya farak hai?
Variance = SD ka square. SD zyada useful hai kyunki iski unit original data jaisi hoti hai (variance ki unit squared hoti hai).
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