You randomly select 2 marbles from a mug containing 6 blue marbles, 6 red marbles, and 3 white marbles. How many times
greater is the probability of selecting 2 red marbles when you replace the first marble before selecting the second marble than
when you do not replace the first marble before selecting the second marble? Round to the 100th for everything.

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

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

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