Objective Questions

-------------------

.. A mininum of 8 questions here (along with answers)

1. What is a log-log chart?

   a. A straight line graph

   #. A graph on the logarithmic scale

   #. A graph on the logarithmic scale with different scales for x and

      y axes

   #. A graph in which x axis is represented in logarithmic scale.

Answer: A graph on the logarithmic scale with different scales for x

 	and y axes

2. We have two lists with us ``years`` and ``profit``, what statement

   can be issued to plot a pie chart to plot the profit for each year,

   and each wedge has to be labelled with the corresponding year.

Answer: pie(profit, labels=years)

3. We have two lists with us ``years`` and profit``, what statement

   can be issued to plot a scatter plot of the data in blue colored

   diamonds. ``years`` has to be plotted along x-axis.

Answer: scatter(year,profit,color='blue',marker='d')

4. ``scatter(x, y, color='blue', marker='d')`` and ``plot(x, y,

   color='b', marker='d')`` does exactly the same.

   a. True

   #. False

Answer: False

5. ``plot(x, y, 'bd')`` creates a scattered plot in blue color and

   diamond markers?

   a. True

   #. False

Answer: True

6. ``scatter(x, y, 'bd')`` creates a scatter plot in blue color with

   diamond markers.

   a. True

   #. False

Answer: False

7. What statement can be issued to generate a bar chart with 135\

   :sup:`o` hatched bar filled with white.

   a. bar(x, y, color='w', hatch='/')

   #. bar(x, y, color='w', hatch='\\')

   #. bar(x, y, color='w', hatch='\')

   #. bar(x, y, color='w', hatch='|')

Answer: bar(x, y, color='w', hatch='\\')

8. What statement can be issued to generate a bar chart with vertical

   line hatching.

   a. bar(x, y, color='w', hatch='/')

   #. bar(x, y, fill=False, hatch='\\')

   #. bar(x, y, fill=False, hatch='|')

   #. bar(x, y, color='w', hatch='\')

Answer: bar(x, y, fill=False, hatch='|')

Larger Questions

----------------

.. A minimum of 2 questions here (along with answers)

1. Plot a log-log chart of the equation y=4*x\ :sup:`2` + 3*x for x

   from -50 to 50.

2. Plot a bar chart which is filled with white color and which is

   hatched with 135\ :sup:`o` slanting lines for the data given in the

   `file(company A data) <company-a-data.txt>`_ which has years and

   profit percentage for each year.