_:n0c5c94f37f1d4d868efe02c5ce73d596xb0
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"&lt;p&gt;&lt;span class=&quot;embed-image-wrapper&quot;&gt;&lt;img class=&quot;embed-image&quot; src=&quot;/assets/img/in-post/exam/aws/mls-c01/whizlabs/visualize-data.png&quot;&gt;&lt;/span&gt;&lt;/p&gt;\n\n&lt;p&gt;Visualize data before choosing a machine learning algorithm&lt;/p&gt;\n\n&lt;ul&gt;\n  &lt;li&gt;Identify patterns&lt;/li&gt;\n  &lt;li&gt;Find corrupt data&lt;/li&gt;\n  &lt;li&gt;Identify outliers&lt;/li&gt;\n  &lt;li&gt;Find imbalances in the data&lt;/li&gt;\n  &lt;li&gt;Explore and demonstrate important relationships, and strength of relationships (density), using plots/chats&lt;/li&gt;\n&lt;/ul&gt;\n\n&lt;h2 id=&quot;charting-data&quot;&gt;Charting data&lt;/h2&gt;\n\n&lt;p&gt;Types of information to convey via Business Intelligence (BI) tools&lt;/p&gt;\n\n&lt;ul&gt;\n  &lt;li&gt;Key Performance Indicators (KPIs)&lt;/li&gt;\n  &lt;li&gt;Relationships&lt;/li&gt;\n  &lt;li&gt;Comparisons&lt;/li&gt;\n  &lt;li&gt;Distributions&lt;/li&gt;\n  &lt;li&gt;Compositions&lt;/li&gt;\n&lt;/ul&gt;\n\n&lt;h3 id=&quot;key-performance-indicators-kpis&quot;&gt;Key Performance Indicators (KPIs)&lt;/h3&gt;\n\n&lt;p&gt;&lt;span class=&quot;embed-image-wrapper&quot;&gt;&lt;img class=&quot;embed-image&quot; src=&quot;/assets/img/in-post/exam/aws/mls-c01/whizlabs/key-performance-indicators.png&quot;&gt;&lt;/span&gt;&lt;/p&gt;\n\n&lt;p&gt;A single value that represents a particular area or function and shows relative performance&lt;/p&gt;\n\n&lt;ul&gt;\n  &lt;li&gt;Net Promoter Score (NPS)&lt;/li&gt;\n  &lt;li&gt;Customer Profitability Score (CPS)&lt;/li&gt;\n  &lt;li&gt;Conversion Rate&lt;/li&gt;\n  &lt;li&gt;Relative Market Share&lt;/li&gt;\n  &lt;li&gt;Net Profit Margin&lt;/li&gt;\n&lt;/ul&gt;\n\n&lt;p&gt;Use KPI charts to represent these indicators&lt;/p&gt;\n\n&lt;h3 id=&quot;relationships&quot;&gt;Relationships&lt;/h3&gt;\n\n&lt;p&gt;&lt;span class=&quot;embed-image-wrapper&quot;&gt;&lt;img class=&quot;embed-image&quot; src=&quot;/assets/img/in-post/exam/aws/mls-c01/whizlabs/relationships.png&quot;&gt;&lt;/span&gt;&lt;/p&gt;\n\n&lt;p&gt;Establish or prove a relationship between 2 or more variables&lt;/p&gt;\n\n&lt;p&gt;Best chart to use depends on number of variables being compared&lt;/p&gt;\n\n&lt;ul&gt;\n  &lt;li&gt;Scatter Chart\n    &lt;ul&gt;\n      &lt;li&gt;Two variables, example&#58; social media spend to adoption rate&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Bubble Chart\n    &lt;ul&gt;\n      &lt;li&gt;Three variables, example&#58; comparing investment return, investment duration, and investment commitment&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n&lt;/ul&gt;\n\n&lt;h3 id=&quot;comparisons&quot;&gt;Comparisons&lt;/h3&gt;\n\n&lt;p&gt;&lt;span class=&quot;embed-image-wrapper&quot;&gt;&lt;img class=&quot;embed-image&quot; src=&quot;/assets/img/in-post/exam/aws/mls-c01/whizlabs/comparisons.png&quot;&gt;&lt;/span&gt;&lt;/p&gt;\n\n&lt;p&gt;Show how variables change over time or show a static view of how different variables compare&lt;/p&gt;\n\n&lt;p&gt;Best chart to use depends on number of variables being compared&lt;/p&gt;\n\n&lt;ul&gt;\n  &lt;li&gt;Bar Chart\n    &lt;ul&gt;\n      &lt;li&gt;One variable, example&#58; website hits in a given month&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Table\n    &lt;ul&gt;\n      &lt;li&gt;Three variables, example&#58; two dimensions represented as the columns and rows, the third by the data in the cells&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Column Chart\n    &lt;ul&gt;\n      &lt;li&gt;One or two variables changing over time, example&#58; show year-over-year sales and number of marketing campaigns&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Line Chart\n    &lt;ul&gt;\n      &lt;li&gt;Three or more variables changing over time, example&#58; show year-over-year sales, number of marketing campaigns, and web traffic&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n&lt;/ul&gt;\n\n&lt;h3 id=&quot;distributions&quot;&gt;Distributions&lt;/h3&gt;\n\n&lt;p&gt;&lt;span class=&quot;embed-image-wrapper&quot;&gt;&lt;img class=&quot;embed-image&quot; src=&quot;/assets/img/in-post/exam/aws/mls-c01/whizlabs/distributions.png&quot;&gt;&lt;/span&gt;&lt;/p&gt;\n\n&lt;p&gt;Show how data is distributed over defined intervals, Interval meaning clustering or grouping, not time&lt;/p&gt;\n\n&lt;ul&gt;\n  &lt;li&gt;Column Histogram\n    &lt;ul&gt;\n      &lt;li&gt;One variable, example&#58; showing how many voters are in various generation groups&lt;/li&gt;\n      &lt;li&gt;Counting something and putting them into buckets&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Scatter Chart\n    &lt;ul&gt;\n      &lt;li&gt;Two variables, example&#58; relating return on investment, investment duration, and investment size&lt;/li&gt;\n      &lt;li&gt;X-axis is investment time, y-axis is return on investment, and the bubble size is the investment size&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n&lt;/ul&gt;\n\n&lt;h3 id=&quot;compositions&quot;&gt;Compositions&lt;/h3&gt;\n\n&lt;p&gt;&lt;span class=&quot;embed-image-wrapper&quot;&gt;&lt;img class=&quot;embed-image&quot; src=&quot;/assets/img/in-post/exam/aws/mls-c01/whizlabs/compositions.png&quot;&gt;&lt;/span&gt;&lt;/p&gt;\n\n&lt;p&gt;Show the elements that make up data set, static or changing over time&lt;/p&gt;\n\n&lt;ul&gt;\n  &lt;li&gt;Pie Chart\n    &lt;ul&gt;\n      &lt;li&gt;simple share of total&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Stacked 100% Bar Chart\n    &lt;ul&gt;\n      &lt;li&gt;components of components&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Tree Map\n    &lt;ul&gt;\n      &lt;li&gt;share of total&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Stacked Area Chart\n    &lt;ul&gt;\n      &lt;li&gt;5 or more periods&lt;/li&gt;\n      &lt;li&gt;relative and absolute differences&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Stacked 100% Area Chart\n    &lt;ul&gt;\n      &lt;li&gt;5 or more periods&lt;/li&gt;\n      &lt;li&gt;relative differences&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Stacked Column Chart\n    &lt;ul&gt;\n      &lt;li&gt;less than 5 periods&lt;/li&gt;\n      &lt;li&gt;relative and absolute differences&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;Stacked 100% Column Chart\n    &lt;ul&gt;\n      &lt;li&gt;less than 5 periods&lt;/li&gt;\n      &lt;li&gt;relative differences&lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n&lt;/ul&gt;\n\n&lt;h2 id=&quot;business-intelligence-tools&quot;&gt;Business Intelligence Tools&lt;/h2&gt;\n\n&lt;p&gt;&lt;span class=&quot;embed-image-wrapper&quot;&gt;&lt;img class=&quot;embed-image&quot; src=&quot;/assets/img/in-post/exam/aws/mls-c01/whizlabs/business-intelligence-tools.png&quot;&gt;&lt;/span&gt;&lt;/p&gt;\n\n&lt;ul&gt;\n  &lt;li&gt;Amazon Quicksight\n    &lt;ul&gt;\n      &lt;li&gt;Cloud powered business intelligence service&lt;/li&gt;\n      &lt;li&gt;Create interactive dashboards that include &lt;ins&gt;machine learning insights&lt;/ins&gt;\n        &lt;ul&gt;\n          &lt;li&gt;Anomaly detection, forecasting, auto-narratives&lt;/li&gt;\n        &lt;/ul&gt;\n      &lt;/li&gt;\n    &lt;/ul&gt;\n  &lt;/li&gt;\n  &lt;li&gt;TensorFlow with TensorBoard&lt;/li&gt;\n  &lt;li&gt;Tableau&lt;/li&gt;\n&lt;/ul&gt;\n\n"
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