117 lines
2.5 KiB
Text
117 lines
2.5 KiB
Text
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Rounding with Function Calls"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"These exercises give you practice calling functions in Python."
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"**Question 1.** Using the function `round`, round the number 1.23456789 to the nearest integer. Give the result the name `rounded`."
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"metadata": {},
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"outputs": [],
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"source": [
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"rounded = ...\n",
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"rounded"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"**Question 2.** Round 1.23456789 to the nearest *thousandth* (.001).\n",
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"\n",
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"*Hint:* Running `round?` in a code cell will show you Python's documentation for the `round` function."
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]
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},
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{
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"cell_type": "code",
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"execution_count": 5,
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"metadata": {},
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"outputs": [],
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"source": [
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"less_rounded = ...\n",
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"less_rounded"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"Suppose you're counting all the small donations made to a political candidate. The donations were:\n",
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"\n",
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"* 32.25\n",
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"* 15.00\n",
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"* 24.45\n",
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"\n",
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"You need to report the total rounded to the nearest dollar.\n",
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"\n",
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"**Question 3.** First you decide to round *each donation* individually and then add up those 3 rounded amounts. Compute that."
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]
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},
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{
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"cell_type": "code",
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"execution_count": 7,
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"metadata": {},
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"outputs": [],
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"source": [
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"sum_of_rounded_amounts = ...\n",
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"sum_of_rounded_amounts"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"**Question 4.** You suspect this method doesn't work quite right. To check, you decide to try a different method: Adding up the donations, and then rounding the total. Compute that."
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]
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},
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{
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"cell_type": "code",
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"execution_count": 9,
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"metadata": {},
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"outputs": [],
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"source": [
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"rounded_sum = ...\n",
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"rounded_sum"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.8.3"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 1
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}
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