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    "# Chapter Exercise\n"
   ]
  },
  {
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   "source": [
    "Apply the key ideas from this chapter in the connected task below. Work in your own notebook or local project. Keep your implementation, reasoning, and verification results together.\n"
   ]
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    "## Compose and export a figure\n",
    "\n",
    "1. Use a real dataset already supplied in the book to build a Matplotlib figure with two complementary Axes and a stated question.\n",
    "\n",
    "2. Use the object-oriented interface to choose plot types, labels, limits, legend, and consistent styling. Explain the roles of Figure, Axes, and pyplot.\n",
    "\n",
    "3. Save the figure at a deliberate size and resolution, reopen it, and verify readable labels and truthful scales. Check plotted values against the data and explain why the two views belong together.\n"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "da820fd9",
   "metadata": {},
   "source": [
    "Return to the chapter lessons as needed: [Matplotlib Basics](0601-mpl.ipynb), [Figures and Axes](0602-figures-axes.ipynb), [Styling and Plot Types](0603-controls-plot-types.ipynb).\n"
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