(1 point) Rationalize the denominator of expression
78
1.e., write it in the form of
ms
Your answer for a is:
Your answer for b is:

What is the correlation coefficient for the data? don't forget to turn the diagnoisticon (in the catalog menu of the calculator). r = answer (round to the nearest thousandth)

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).

Write the fraction or mixed number and the decimal shown by the model