List indexing

1. Analyse which of these assignment statements are correct and which are not. Why ?. Manually obtain the values of each variable. Then check them using a Python shell.

   a = ['a', 5, 3.2, [4, 'bc']]
   b = a[0]
   c = a[-1]
   d = c[1]
   e = a[-5]
   f = a[4]
   g = a[1.0]
   h = a[[]]
   h = a['x']
   i = a[-2]
   j = a[-1][1][0]
   

2. Which of these lists are homogeneous and which are heterogeneous ?

   [3, 1, 5, 8]
   [3, 1, 5.0, 8]
   [3, 1, [5, 8]]
   ['3', 1, '5', 8]
   ['3', '1', '5', '8']
   [3.0, 1.0, 5.0, 8.0]
   [[3], [1], [5, 8], []]