In a laboratory dedicated to performing tensile tests on specimens, an hour after the start of the test, the elongation in millimeters suffered by the different specimens manufactured from the same material, obtaining the attached information table: Between what

Mean (X̅) = [ (∑ xi )/n ] =40/8 =5 Sample variance (s2) = [ ∑ (xi – x̅)2] /n-1 = 82/7=11.7343 Sample ...

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Pregunta: In a laboratory dedicated to performing tensile tests on specimens, an hour after the start of the test, the elongation in millimeters suffered by the different specimens manufactured from the same material, obtaining the attached information table: Between what
In a laboratory dedicated to performing tensile tests on specimens, an hour after the start of the test, the elongation in millimeters suffered by the different specimens manufactured from the same material, obtaining the attached information table: Between what values do at least 75% of the observations lie?

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Mean (X̅) = [ (∑ x_i )/n ] =40/8 =5

Sample variance (s²) = [ ∑ (x_i – x̅)²] /n-1 = 82/7=11.7343
Sample ...
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¿Entre que valores se encuentra, como mínimo, el

75%

de las observaciones?