Can you explain me what should be dummy variables in this data set? And how should I deal with it for regression analysis?

4. Dataset C (Updated) For Assignment 3 - Microsoft Excel (Product Activation Failed) X File Home Insert Page Layout Formulas Review View Developer Acrobat to Cut Calibri 11 A Wrap Text General E AutoSum * En Copy . A Insert Delete Format Fill Paste Format Painter BIU . BY 3 Merge & Center Conditional Format Cell Sort & Find & Formatting * as Table * Styles 2 Clear * Filter Select Clipboard Font Alignment Number Styles Cells Editing A B C D E F G H K L M N Overall Country Region Happiness Economy (GDP Health (Life Trust (Government rank Score per Capita) Family Expectancy) Freedom Generosity Corruption) 1 Finland Western Europe 7.769 1.34 1.587 0.986 0.596 0.153 D.393 2 Denmark Western Europe 7.6 1.383 1.573 0.996 0.592 0.252 0.41 3 Norway Western Europe 7.554 1.488 1.582 1.028 0.603 0.271 0.341 4 Iceland Western Europe 7.494 1.38 1.624 1.026 0.354 0.118 5 Netherlands Western Europe 7.488 1.396 1.522 0.999 0.557 0.322 0.298 6 Switzerland Western Europe 7.48 1.452 1.526 1.052 0.572 0.263 8 7 Sweden Western Europe 7.343 1.387 1.487 1.009 0.574 0.267 0.373 9 8 New Zealand Australia and New Zealand 7.307 1.303 1.557 1.026 0.585 0.38 10 9 Canada North America 7.278 1.365 1.505 1.039 0.584 0.285 0.308 11 10 Austria Western Europe 7.246 1.376 1.475 1.016 0.532 0.244 0.226 12 11 Australia Australia and New Zealand 7.228 1.372 1.548 1.036 0.557 0.332 0.29 13 12 Costa Latin America and Caribbean 7.167 1.034 1.441 0.963 0.144 0.093 14 13 Israel Middle East and Northern Africa 7.139 1.276 1.455 1.029 0.371 0.261 0.082 15 14 Luxembourg Western Europe 7.09 1.609 1.479 1.012 0.526 0.194 0.316 16 15 United Kingdom Western Europe 7.054 1.333 1.538 0.996 0.45 0.348 0.278 16 Ireland Western Europe 7.021 1.499 1.553 0.999 0.516 0.298 0.31 18 17 Germany Western Europe 6.985 1.373 1.454 0.987 0.495 0.261 0.265 19 18 Belgium Western Europe 6.923 1.356 1.504 0.986 0.473 0.16 0.21 20 19 United States North America 1.433 0.874 0.454 0.128 20 Czech Republic Central and Eastern Europe 1.269 1.487 0.92 0.457 0.046 0.036 22 21 United Arab Emirates Middle East and Northern Africa 6.825 1.503 1.31 0.598 0.262 0.182 23 22 Malta Western Europe 1.3 0.999 0.564 0.375 0.151 4 2019 (Original) Region 2019 Hapiness Score 2019 Economy 2019 Family 2019 Life Expectancy 2019 Freedom Ready 8 100% + Type here to search O W X A D $ ( ) ENG 11:30 AM 5/29/2020