A Jar Contains 10 Red Marbles

If you remove marbles one at a time randomly what is the minimum number that must be removed to be certain that you have at least 2 marbles of each colour.

A jar contains 10 red marbles.

A marble is drawn at random from the jar. A jar contains 4 black marbles and 3 red marbles. The information shows that a jar contains 10 red marbles and 30 blue marbles. The formula for calculating the probability is probability number of favourable outcomes total outcomes.

4 red 6 white and 10 blue. 10 x 30 red marbles green marbles i e. A jar contains 10 red marbles numbered 1 to 10 and 10 blue marbles numbered 1 to 10. Find the probability of the given event.

A if one marble is drawn at random what is the probability that it is red. 35 let us consider the number of red marbles added be x. A the marble is red b the marble is red or odd numbered c the marble is blue and even numbered answer by ikleyn 33701 show source. If the first two marbles are both blue what is the probability that the third marble will be red.

Now the number of red marbles becomes. A random sample of n 3 marbles is selected from the jar. A marble is drawn at random from the jar. The answer is.

A jar contains 15 blue and 10 red marbles. A marble is drawn at random from the jar. A jar contains 8 red marbles numbered 1 to 8 and 10 blue marbles numbered 1 to 10. A draw the tree diagram for the experiment.

Find the probability of the given event please show your answers as reduced fractions. Two marbles are drawn without replacement. A jar contains 10 red marbles and 30 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time find the probability that both are red 17 total marbles the 1st pick is 5 17 then 2nd is 4 16 the product is 5 68 makes no difference if you take 2 at a time or 2 different choices without.

B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3. There are 10 ways to succeed. A the marble is red. 10 x number of green marbles remains 30 hence total number of marbles becomes.

Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles. A jar contains 20 marbles. Find the probability of the given event. A jar contains 12 red marbles numbered 1 to 12 and 6 blue marbles numbered 1 to 6.

Calculating the probability of obtaining a red marble.