Probability Marbles Examples

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.

Probability marbles examples. So maybe we mix them all up and we have an equal probability of selecting any one of these. 2 blue marbles so we have 1 blue marble 2 blue marbles. So they say the probability i ll just say p for probability. The probability of picking a yellow marble.

So the probability of getting 2 blue marbles is. And in our case. Each marble has an equal chance of being drawn. They re kind of orange ish but it does the job.

And then we have 3 green marbles let me draw those 3 so 1 2 3. And so this is sometimes the event in question right over here is picking the yellow marble. Probability examples a jar contains 30 red marbles 12 yellow marbles 8 green marbles and 5 blue marbles what is the probability that you draw and replace marbles 3 times and you get no red marbles. For example suppose you are drawing three marbles red blue and green from a bag.

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. What is the conditional probability of drawing the red marble.