Exercise 6 - Object X_multi_norm has incorrect type

Course Q&A Math for Machine Learning Linear Algebra for Machine Learning and Data Sc...
1

Hi - i’m a bit confused on this one, i’ve update parameters for parameters_multi () and the cost iterations have been returned and match the Expected Output, but after submitting the ‘Grades’ page shows 0/10 for Exercise 6?

Lab ID: avkckhnvltqt

Failed test case: Object X_multi_norm has incorrect type…
Expected:
<class ‘numpy.ndarray’>,
but got:
<class ‘NoneType’>.

2

Have you perhaps renamed the notebook .ipynb file?