Normal Distribution Calculator
This calculator for Normal distribution asks to enter three parameters:
the known mean of your distribution, its standard deviation and the
value you want to explore. In return, the outputs will be the frequency
and the probability of the value under study.
shaded area represents the probability of "x’"
and its frequency is "y".
normal probability is approximated using the following formula:
= 1 – r(a1t + a2t2 + a3t3)
= 1/(1 + 0.33267x)
average frequency of a certain type of computers
in manufacturing is 2 GHz.
The known standard deviation is 0.02 GHz. If the frequency of
those computers is normally
is the probability that a computer runs between 2 GHz and 2.01
Run the calculator below
Enter mean: 2
Enter std. deviation: 0.02
Enter variable: 2.01
The output is
Frequency = 0.3521
Probability = 0.6915
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