For each step, need to submit both the sample code and an output diagram. Provide screenshots of the sample codes and outputs for each step

Step 1

Plot a histogram of 1000 random numbers from the standard normal distribution. (Keep breaks=50 and the Z Score=1.669)

Step 2

Now take 1000 samples of size 20 from the standard normal distribution at the same time. Use a matrix, where each row of X is a sample of size 20 from the standard normal distribution with 1000 rows.

Sample output for Step 1 and Step 2.