A couple wants to have 4 children. They would like to have at least three boys. Assume the probability of having a boy is .5. What is the probability they get at least three boys

Simplify the following expression 48^1/2

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?