Create a system of equations that are parallel to the y-axis.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?