Normal Distribution

The driving distance to work for residents of a certain community has mean $21$ miles and standard deviation $3.6$ miles. Then the probability that an individual drives between $10$ and $20$ miles to work is

A general electric soft white three-way bulb has an average life of $1200$ hours with a standard deviation of $50$ hours. Then the probability that the life of one of these bulbs will be between $1150$ and $1300$ hours is

According to the label, a regular can of Campbell's ${}^{\mathrm{TM}}$ soup holds an average of $305 \mathrm{gm}$ with a standard deviation of $4.2 \mathrm{gm}$. Then the probability that a can will be sold that holds more than $306 \mathrm{gm}$ is

The scores on a standardized test in a suburban high school have a mean of $80$ with a standard deviation of $12.$ Then the probability that a student will have a score less than $60$ is