The readings on the scientific thermometers are normally distributed with a mean of 0 C and a standard deviation of 1 C. This is an example of the standard normal distribution. Use StatCrunch or TI83/84 to find the following probabilities.

1. Find the probability that, at the freezing point of water, the reading is less than 1.8 C.

b. Find the probability that, at the freezing point of water, the reading is above 1.8 C.

c. Find the probability that, at the freezing point of water, the reading is between 0 C and 2.00 C.

d. Find the temperature at the 70^th percentile: P₇₀, that is thetemperature that separates the bottom 70% from the top 30%.