area under normal curve

Question

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading between 0°C and 1.206°C

Answer 1

Since N(0,1), probability reading between 0 and 1.206 = P(0 < z < 1.206) = P(z < 1.206) - P(z < 0 ) = 0.8861 - 0.5 = 0.3861.