Thanks for the guidance Paul!!!
I believe it is my not yet understanding of the all assignment’s details that trip me up.
I am getting an AssertionError on the final code cell but C2W2: All Tests Passed, But Still Getting Errors in The Last Cell - #6 by Nithin_Skantha_M describes this as not critical and due to the nature of the calculations.
I’ve submitted the assignment and am hoping for the best!
Take care