The mass of a species of mouse commonly found in houses is normally distributed with a mean of 19.3 grams with a standard deviation of 0.13 grams. Enter your responses as a decimal with 4 decimal...

The mass of a species of mouse commonly found in houses is normally distributed with a mean of 19.3 grams with a standard deviation of 0.13 grams.  Enter your responses as a decimal with 4 decimal places.

(a) What is the probability that a randomly chosen mouse has a mass of less than 19.21 grams?

(b) What proportion of mice have a mass between 19.23 and 19.4 grams?

(c) 10% of all mice have a mass of less than ______ grams.