Data Science With Python Class..Need Help on Project

Question

I am doing the 'Average of Rows' Project (the first project in the Data Science with Python class). Here is my code. It only works for the first 3 test cases but not the others, which are locked. I don't know why it isn't working. Any help? Thanks in advance:

import numpy as np
n, p = [int(x) for x in input().split()]
mat=[]
for i in range(n):
mat.append([])
mat[i]=[float(x) for x in input().split()]
mat_arr=np.array(mat)
print(mat_arr.mean(axis=1))

Answer 1

Based on the problem, you have to round the mean into 2 decimal places.

print(mat_arr.mean(axis=1).round(2))

Just an Additional:
You can just append the list comprehension right away to mat, because list comprehension is already generating a list, rather than appending an empty list then changing it.

Here's the code, if you have more questions, please feel free to ask. Thanks!
https://code.sololearn.com/cA7a11a14A23

Answer 2

https://code.sololearn.com/c4A21a20A24a/?ref=app see this