1 Standard deviation calculator (σ)
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Standard Deviation Calculator

Standard deviation (σ) calculator with mean value & variance online.

Population and sampled standard deviation calculator

Enter data values delimited with commas (e.g: 3,2,9,4) or spaces (e.g: 3 2 9 4) and press the Calculate button.

Enter data values:
   
Population standard deviation:
Sample standard deviation:
Population variance:
Sample variance:
Mean:

Discrete random variable standard deviation calculator

Enter probability or weight and data number in each row:

Probability Data number
Standard deviation:
Variance:
Mean:

Whole population standard deviation calculation

Population mean:

population mean

Population standard deviation:

population standard deviation

Sampled data standard deviation calculation

Sample mean:

Sample mean

Sample standard deviation:

Sample standard deviation

Discrete random variable standard deviation calculation

Random variable mean:

random variable mean

Discrete random variable standard deviation:

random standard deviation

 

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MATH CALCULATORS
The condition with one obscure, which after the opening of sections and throwing of comparable individuals takes the structure ah + b = 0, where an and b are discretionary numbers, is known as a direct condition with one obscure. Today we will see how to explain these straight conditions. - For instance, all conditions: 2x + 3 = 7 - 0.5x; 0.3x = 0; x/2 + 3 = 1/2 (x - 2) - straight. The estimation of the obscure that turns around the condition to the right balance is known as the arrangement or the foundation of the condition. For instance, in the event that we substitute the number 2 in the condition 3x + 7 = 13 rather than the obscure x, at that point we get the genuine correspondence 3 · 2 +7 = 13. Henceforth, the worth x = 2 is the arrangement or the base of the condition. Furthermore, the worth x = 3 does not change over the condition 3x + 7 = 13 to a genuine balance, since 3 · 2 +7 ≠ 13. Subsequently, the worth x = 3 isn't an answer or a foundation of the condition. The arrangement of any straight conditions is diminished to the arrangement of conditions of the structure ah + b = 0. Move the free term from the left half of the condition to one side, changing the sign before b to the inverse, we get ah = - b. On the off chance that a ≠ 0, at that point x = - b/a.

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