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Assume te madings on thermometers are nomaly dibuted with a man of Cand a standard deviation of 100C. Find the probably twa
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Answer #1

Solution,

Using standard normal table,  

P( -1.31 < Z < -0.12)

= P( Z < -0.12) - P( Z < -1.31)

= 0.4522 - 0.0951

= 0.3571

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