Eight squared equals what
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Answer:
<em>The percentage of nights does it take employees less than 3 hours to clean the largest building </em>
<em> P( x < 3) = 2.28 hours</em>
<em>Step-by-step explanation:</em>
<u><em>Step(i):-</em></u>
<em>Given mean of the Population = 3.8 hours</em>
<em>Given Standard deviation of the Population = 0.4 hours</em>
Let 'X' be the random variable in Normal distribution
Let 'X' = 3 hours
<u><em>Step(ii):-</em></u>
<em>The probability that nights does it take employees less than 3 hours to clean the largest building</em>
P( x < 3) = P(Z < -2)
= 0.5 -A(-2)
= 0.5 - A(2)
= 0.5 - 0.4772
= 0.0228
<em>The probability that nights does it take employees less than 3 hours to clean the largest building</em>
<em>P( x < 3) = 0.0228</em>
<em><u>Conclusion:-</u></em>
<em>The percentage of nights does it take employees less than 3 hours to clean the largest building </em>
<em> P( x < 3) = 2.28 hours </em>