SOLUTION: Assume the readings on thermometers are normally distributed with a mean of 0 degrees c and a standard deviation of 1.00 degrees c. Find the probability that a randomly selected th

Algebra ->  Probability-and-statistics -> SOLUTION: Assume the readings on thermometers are normally distributed with a mean of 0 degrees c and a standard deviation of 1.00 degrees c. Find the probability that a randomly selected th      Log On


   

Question 899156: Assume the readings on thermometers are normally distributed with a mean of 0 degrees c and a standard deviation of 1.00 degrees c. Find the probability that a randomly selected thermometer reads between -1.71 and -0.72 and draw a sketh of the region.
Answer by stanbon(75887) About Me  (Show Source):
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Assume the readings on thermometers are normally distributed with a mean of 0 degrees c and a standard deviation of 1.00 degrees c. Find the probability that a randomly selected thermometer reads between -1.71 and -0.72 and draw a sketh of the region.
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z(-1.71) = (-1.71-0)/1 = -1.71
z(0.72) = 0.72
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P(-1.71 < x < 0.72) = P(-1.71< z < 0.72) = normalcdf(-1.71,0.72) = 0.7206
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Cheers,
Stan H.
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