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.
if there is a jar containing 5 red marbles 6green and 4 blue what is the probability off not chossing a blue marble
5:16
7/(4+7+5) = 7/16 = 43.75%
4 If the marbles are all red - 100%. You need to give the number of each different colored marble
Suppose probability of drawing a red marble is p. Then p = 2*(1 - p) that is p = 2 - 2p or p = 2/3 So 2/3 of the 24 marbles are red 24*(2/3) = 16 red marbles.
100%
1/3 or 33%
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.
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 there is a jar containing 5 red marbles 6green and 4 blue what is the probability off not chossing a blue marble
cant answer this question without more information....probability requires a ratio.
5:16
If one marble is chosen at random, the probability is 6/(4+6+5) = 6/15 = 2/5
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.
It can not be determined with the data provided.
5 out of 15 or 1/3 1:3
Probability of drawing a red marble = 4/16 = 1/4 Probability of drawing not a red marble = 1 - 1/4 = 3/4