Added quickrefs for dictionaries, getting started with arrays, for, matrices, other plots, savefig, using python modules.
Objective Questions
-------------------
.. A mininum of 8 questions here (along with answers)
1. Container-ship of values can be checked in a python dictionary
a. True
#. False
Answer: False
2. Container-ship of only keys can be checked in a python dictionary
a. True
#. False
Answer: True
3. The value in a dictionary can be
a. String
#. Integer
#. Any data type
#. None
Answer: Any data type
4. Python lists can be made as a key in dictionaries.
a. True
#. False
Answer: False
5. Given a python dictionary ``x = {'a' : 1, 'b' : 2, 'c' : 3, 'd' :
4}``. When printed using ``print x`` will generate the output in
the order. {key-value pair ``'a':1`` identified as a, ``'b':2``
identified as b and so on}
a. a, b, c, d
#. d, c, b, a
#. a, c, b, d
#. b, d, a, c
#. Cannot predict
Answer: Cannot predict
6. The python dictionary ``x = {'a' : ['a', 'b', 'c'], 'b' : (1, 2, 3),
1 : {1 : 'one', 2 : 'two'}, 10 : {10 : 'ten', 11 : 'eleven'}}`` is
invalid.
a. True
#. False
Answer: False
7. Consider the python dictionary ``x = {'a' : ['a','b','c'], 'b' :
(1, 2, 3), 1 : {1 : 'one', 2 : 'two'}, 10 : {10 : 'ten', 11 :
'eleven'}}``. And after applying the code below, what will be the
output of ``print x['a']``
::
x['a'].extend(['d', 'e'])
x['a'][3] = x[10]
a. Code will result in error
#. ['a', 'b', 'c', {11: 'eleven', 10: 'ten'}, 'e']
#. {10 : 'ten', 11 : 'eleven'}
#. {10 : 'ten', 11 : 'eleven', 'a' : ['a', 'b', 'c']}
#. (1, 2, 3, ['a', 'b', 'c'])
Answer: ['a', 'b', 'c', {11: 'eleven', 10: 'ten'}, 'e']
8. Consider the python dictionary ``x = {'a' : ['a','b','c'], 'b' :
(1, 2, 3), 1 : {1 : 'one', 2 : 'two'}, 10 : {10 : 'ten', 11 :
'eleven'}}``. The code ``(1, 2, 3) in x.values()`` will return
a. True
#. False
#. Container-ship of values cannot be checked in dictionaries
#. The dictionary is invalid
Answer: True
Larger Questions
----------------
.. A minimum of 2 questions here (along with answers)
1. Write a python script which can print the numbers from 1 to
999(both included) in words.
2. Given the list of marks of students in a class, write a program to
find the duplicate marks. List the duplicate marks and also print
the number of duplicates for each.
3. Given a list of words, find the anagrams in it and list them.
[meats, tap, steep, tames, hare, pets, had, apt, teams, dark,
dealer, once, rhea, cloud, step, steam, have, could, ounce, pest,
head, leader, cone, rare, rear, hear, pat, mates]