In the scatter plot example(9th september class), i did not understand what is the puspose of random generation of nos for colors and area?

Sep 15 2017 11:22 AM

```
The main purpose of the scatter plot to understand how variables explained when we we perform multi variate analysis.
Like in the the plot variables x,y and z are identical.
When we perform x with y: the explanatory power has increased new insights where us to understand.
```

kindly read the question again, i am asking about random no generation and not about the importance of scatter plot.

`numpy.random.`

`randn`

(*d0*, *d1*, *...*, *dn*)

Return a sample (or samples) from the “standard normal” distribution.

If positive, int_like or int-convertible arguments are provided, `randn`

generates an array of shape `(d0, d1, ..., dn)`

, filled with random floats sampled from a univariate “normal” (Gaussian) distribution of mean 0 and variance 1 (if any of the are floats, they are first converted to integers by truncation).