randFromArray(["bag", "jar", "box", "goblet"]) randFromArray(["marble", "ball", "jelly bean"]) randRange(3, 11) randRange(3, 11) randRange(3, 11) REDMAR + GREENMAR + BLUEMAR rand(2) === 0 randFromArray([["red", REDMAR], ["green", GREENMAR], ["blue", BLUEMAR]]) NOT ? TOTAL - CHOSEN_NUMBER : CHOSEN_NUMBER

A CONTAINER contains REDMAR red MARBLEs, GREENMAR green MARBLEs, and BLUEMAR blue MARBLEs.

If a MARBLE is randomly chosen, what is the probability that it is not CHOSEN_COLOR?

NUMBER / TOTAL

There are REDMAR + GREENMAR + BLUEMAR = TOTAL MARBLEs in the CONTAINER.

There are CHOSEN_NUMBER CHOSEN_COLOR MARBLEs. That means TOTAL - CHOSEN_NUMBER = NUMBER are not CHOSEN_COLOR.

The probability is \displaystyle fractionSimplification(NUMBER, TOTAL).

randFromArray([["a 1",[1]],["a 2",[2]],["a 3",[3]],["a 4",[4]],["a 5",[5]],["a 6",[6]],["at least 2",[2,3,4,5,6]],["at least 3",[3,4,5,6]],["at least 4",[4,5,6]],["more than 2",[3,4,5,6]],["more than 3",[4,5,6]],["more than 4",[5,6]],["less than 4",[1,2,3]],["less than 5",[1,2,3,4]],["less than 6",[1,2,3,4,5]],["even",[2,4,6]],["even",[2,4,6]],["odd",[1,3,5]],["odd",[1,3,5]],["prime",[2,3,5]]]) RESULT_POSSIBLE.length

A fair six-sided die is rolled. What is the probability that the result is RESULT_DESC?

RESULT_COUNT / 6

When rolling a die, there are 6 possibilities: 1, 2, 3, 4, 5, and 6.

In this case, only 1 result is favorable: the number RESULT_POSSIBLE[0].

In this case, RESULT_COUNT results are favorable: toSentence(RESULT_POSSIBLE).

The probability is \displaystyle fractionSimplification(RESULT_COUNT, 6).