In a stable population, the number of people of any age must be smaller than the number of people in the age just below. This is because the difference between the two is the number of younger people who died at that age. Furthermore mortality rates are age dependent: after a relatively (or in some cases absolutely) high infant mortality, the rate drops until old age kicks in. As a reult the distribution is not normal.
In a growing population the lower end of the distribution is large and so again not normal.
IQ is normally distributed in the general population. Age is not.
It is called a normal distribution.
we prefer normal distribution over other distribution in statistics because most of the data around us is continuous. So, for continuous data normal distribution is used.
The normal distribution has two parameters, the mean and the standard deviation Once we know these parameters, we know everything we need to know about a particular normal distribution. This is a very nice feature for a distribution to have. Also, the mean, median and mode are all the same in the normal distribution. Also, the normal distribution is important in the central limit theorem. These and many other facts make the normal distribution a nice distribution to have in statistics.
i dont even no
Why we prefer Normal Distribution over the other distributions in Statistics
IQ is normally distributed in the general population. Age is not.
It is called a normal distribution.
we prefer normal distribution over other distribution in statistics because most of the data around us is continuous. So, for continuous data normal distribution is used.
The normal distribution has two parameters, the mean and the standard deviation Once we know these parameters, we know everything we need to know about a particular normal distribution. This is a very nice feature for a distribution to have. Also, the mean, median and mode are all the same in the normal distribution. Also, the normal distribution is important in the central limit theorem. These and many other facts make the normal distribution a nice distribution to have in statistics.
i dont even no
The Student's T- Distribution is a type of probability distribution that is theoretical and resembles a normal distribution. The Student T- Distribution differs from the normal distribution by its degrees of freedom.
a Gaussian or 'normal' distribution
It is probably the most widely used distribution in statistics. In addition, a lot of information exists on this distribution.
It may not be better, but there is a lot of information on the normal distribution. It is one of the most widely used in statistics.
Not necessarily.
to estimate the parameter values of a known distribution like normal distribution in this we estimate the parameters pop.mean and s.d