Read More
Date: 26-2-2021
1222
Date: 1-5-2021
1732
Date: 30-4-2021
1237
|
A standard normal distribution is a normal distribution with zero mean () and unit variance (), given by the probability density function and distribution function
(1) |
|||
(2) |
over the domain .
It has mean, variance, skewness, and kurtosis excess given by
(3) |
|||
(4) |
|||
(5) |
|||
(6) |
The first quartile of the standard normal distribution occurs when , which is
(7) |
|||
(8) |
(OEIS A092678; Kenney and Keeping 1962, p. 134), where is the inverse erf function. The absolute value of this is known as the probable error.
REFERENCES:
Kenney, J. F. and Keeping, E. S. Mathematics of Statistics, Pt. 1, 3rd ed. Princeton, NJ: Van Nostrand, pp. 129 and 134, 1962.
Sloane, N. J. A. Sequence A092678 in "The On-Line Encyclopedia of Integer Sequences."
|
|
علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
|
|
|
|
|
أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
|
|
|
|
|
مدرسة دار العلم.. صرح علميّ متميز في كربلاء لنشر علوم أهل البيت (عليهم السلام)
|
|
|