# 10 Marbles Probability

### Change the number of marbles of different colors in the boxes and guess the probability of drawing a red blue or yellow marble.

10 marbles probability.

An example based on probability. What is probability without replacement or dependent probability. A ball is drawn at random from each bag. This activity shows the classic marble example of elementary probability.

Now let s take a look at a probability situation that involves marbles. There are 4 blue marbles 5 red marbles 1 green marble and 2 black marbles in a bag. Bag a contains 10 marbles of which 2 are red and 8 are black. Example 2 probability with marbles.

Suppose you select one marble at random. The probability of picking a yellow marble. If a marble is drawn from the jar at random what is the probability that this marble is red. A jar contains 4 blue marbles 5 red marbles and 11 white marbles.

So they say the probability i ll just say p for probability. Once you have decided on your answers click the answers checkboxes to see if you are right. And we write it as probability of event a and event b equals the probability of event a times the probability of event b given event a let s do the next example using only notation. Bag b contains 12 marbles of which 4 are red and 8 are black.

P b a is also called the conditional probability of b given a. The number of events is 5 since there are 5 red marbles and the number of outcomes is 20. A draw a probability tree diagram to show all the outcomes the experiment. Https bit ly quantarithmetic in this video we will l.

For example a marble may be taken from a bag with 20 marbles and then a second marble is taken without replacing the first marble. I both are red. In some experiments the sample space may change for the different events. The probability is 5 20 1 4.

B find the probability that. You could also express this as 0 25 or 25. And in our case. Find the probability of pulling a yellow marble from a bag with 3 yellow 2 red 2 green and 1 blue i m assuming marbles.

And so this is sometimes the event in question right over here is picking the yellow marble.

### Probability Pack Montessori Elementary Math Montessori Math Probability Math Probability Activities

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