writing a script that can execute several functions witout having to call them using packages ?

Here is the question as mentioned in the problem :

    Write a Python script

which contains 5 definitions of functions for the 5 laws in the picture below.

Each Function will be used to calculate and return the values ​​of the

characteristic parameters.

    Then draw and display the

curve representing the probability density function of the law selected by the

user. Since the user will have to choose the law he wants to apply to his data,

at the start of the execution of your program, the latter will have to ask this

user to make a choice among the 5 laws that will be proposed to him. Each of

these laws aims to statistically analyse a collection of data. To make his

choice of law, the user must first enter and enter all the values ​​of the data

he wants to analyze (they will be stored in a list or a table or any option

that suits you). You are strictly prohibited from using functions already

preprogrammed in the Python for the 5 proposed laws. For example, if we take

Weibull's law, the library Scipy already contains functions planned for the

latter, and we do not have to code all the mathematical equations in the table.

For everything else, you are free to deal this problem as you like.