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In a group of 4 people, the height of the group members are 5 feet 4 inches, 5 feet, 5 feet 6 inches, and 4 feet 10 inches. The average height of the group members is :

In a group of 4 people, the height of the group members are 5 feet 4 inches, 5 feet, 5 feet 6 inches, and 4 feet 10 inches. The average height of the group members is : Correct Answer 5 feet 2 inches

First we convert all the length to inches (the smaller unit), then we average and finally conver to feet and inchs. At 12 inches make 1 foot, soAverage = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>12</mn><mo>(</mo><mn>5</mn><mo> + </mo><mn>5</mn><mo> + </mo><mn>5</mn><mo> + </mo><mn>4</mn><mo>)</mo><mo> + </mo><mn>4</mn><mo> + </mo><mn>0</mn><mo> + </mo><mn>6</mn><mo> + </mo><mn>10</mn></mrow><mn>4</mn></mfrac></math> = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>12</mn><mo>&#xD7;</mo><mn>19</mn><mo> + </mo><mn>4</mn><mo> + </mo><mn>6</mn><mo> + </mo><mn>10</mn></mrow><mn>4</mn></mfrac></math> = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>228</mn><mo> + </mo><mn>5</mn><mo> + </mo><mn>6</mn><mo> + </mo><mn>10</mn></mrow><mn>4</mn></mfrac></math> = 62 inches = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>62</mn><mn>12</mn></mfrac></math> feet = 5.1666 feet

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