$6.$ In Python, execute the following code:

import numpy as np

normal$\_9=$ np$.$random.randn$(9)$

normal$\_9.$shape $=(3,3)$

normal$\_3=$ normal$\_9[1]$

Then answer the following questions:

a$)$ Explain what each statement in the above code does.

b$)$ What class is the object named normal$\_9?$ How do you know?

c$)$ What statement can you write to find the maximum value in normal$\_9?$

d$)$ What statement can you write to create an array named normal$\_6$ that

contains the values in the $1$st and $3$rd rows of normal$\_9?$

e$)$ What happens to normal$\_3$ and normal$\_6$ if we execute the statement

normal$\_9[1]=0?$ Why?

f$)$ What happens to normal$\_3$ and normal$\_6$ if we execute the statement

normal$\_9[2,2]=0?$ Why?

g$)$ What happens to normal$\_3$ and normal$\_6$ if we execute the statement

normal$\_9=1?$ Why?