The sample space of an experiment would be the set of all possible outcomes. If you are reaching your hand into a bag and pulling out a marble at random, the outcomes will either be (red)(red)(yellow)(yellow)(yellow)(yellow)(yellow). This gives seven different options. This will obviously change each time a marble is removed or added.
3 in 10
20% Total marbles = 35 + 85 + 30 = 150 Yellow marbles = 30 Percentage yellow marbles = number_of_yellow / total_number x 100 % = (30 / 150) x 100 % = 1/5 x 100 % = 20%
The probability of pulling a red or yellow marble out of a bag of 3 green 8 red 8 yellow and 3 black marbles is 16 out of 22, or about 0.73.
20% (or 2 in 10 chance)
24 red marbles
The sample space for pulling marbles out of a bag containing 6 red, 3 yellow, 1 black, and 1 green marble, when drawing 2 at a time, consists of all possible combinations of two marbles. Each combination can include two marbles of the same color or one marble of different colors. For example, possible outcomes include (red, red), (red, yellow), (yellow, green), and so on. The total number of combinations can be calculated using combinatorial methods, but the sample space itself includes all unique pairs of the marbles.
Use this formula - 100 * red / (blue+red+yellow).
He has a number of yellow marbles that leaves a reminder of 2 when divided by 3 and is a number smaller than 22. That is the number of yellow marbles = 2(mod 3).
5 becaese you will get blue
3 in 10
20% Total marbles = 35 + 85 + 30 = 150 Yellow marbles = 30 Percentage yellow marbles = number_of_yellow / total_number x 100 % = (30 / 150) x 100 % = 1/5 x 100 % = 20%
1:4. The red marbles are an unnecessary complication. who wouldwanna take the time to actually think thru this question...
0No blue marbles in the bag.
The probability of pulling a red or yellow marble out of a bag of 3 green 8 red 8 yellow and 3 black marbles is 16 out of 22, or about 0.73.
20% (or 2 in 10 chance)
There are 15 blue marbles, 8 yellow marbles and 27 red marbles for a total of 50 marbles. Since there are no green marbles in the lot, It is impossible to pull a green marble from the lot. The is no probability whatsoever! "There just ain't no green ones to pull."
2/9