5 out of 15 or 1/3 1:3
The probability of choosing a green marble from this jar would be 6/15. You get this answer by adding up the sum of all the marbles.
1/3
it depends how many blue marbles there are and how many marbles total.
45 __ 91
If you pull 35 marbles without replacement, the answer is 1: the event is a certainty. If you pull only one marble, at random, the probability is 16/50 = 8/25.
The probability of drawing a white marble is .46
There are 16 marbles total and 7 green ones, so the probability is 7/16.
if there is a jar containing 5 red marbles 6green and 4 blue what is the probability off not chossing a blue marble
The probability of choosing a green marble from this jar would be 6/15. You get this answer by adding up the sum of all the marbles.
1/3
it depends how many blue marbles there are and how many marbles total.
This is the same as the probability of choosing either a red of a blue marble. There are 5+4 out of 15 ways of doing this. The probability is therefore 9/15 = 3/5.
More information is required. Probability by definition is the proportion of a part, called a sample, to the whole, called a population. Thus in this question, we are given the sample only and without the population, it is impossible to calculate the probability. We need to know the size of the population. As a guide, supposing there are 8 red marbles in a jar containing 40 marbles, then the probability of choosing red is 8/40 or 1: 0.2. There is 20 per cent probability of choosing red.
7/(4+7+5) = 7/16 = 43.75%
The probability of choosing a blue marble is 5 in 15 or 1 in 3. The probability of then choosing a green marble is 5 in 14. (One is missing) Multiply the two probabilities and you get 5 in 42.(P = 0.1190... about 12%).
If one marble is chosen at random, the probability is 6/(4+6+5) = 6/15 = 2/5
45 __ 91