Rate The Difficulty of School on a Scale of 1-10. 10 being super hard, 1 being super easy.

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Which choice represents the sample space ,s for this event

The rectangle on the right is the image of the rectangle on the left. what transformation would result in this image? reflection rotation translation dilation