What is the difference between the mean and the median of the following distribution. {1,1,1,2,2,2,2,3,3,4,4,4,4,5,5,6,7, 7,8,8,9}

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)

Which of the following is equal to the rational expression when x is not equal to -2 or -6?