You choose a marble at random from a bag containing 4 blue, 3 red, 2 purple and 1 green. You will replace the marble and choose again. What is the P(red then blue)? Write the answer as a fraction in lowest terms using the (/) key. *

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).

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.