A Jar Contains 10 Red Marbles

A marble is drawn at random from the jar.

A jar contains 10 red marbles.

The answer is. 10 x 30 red marbles green marbles i e. A the marble is red b the marble is odd numbered c the marble is red or odd numbered d the marble is blue and even numbered. 35 let us consider the number of red marbles added be x.

The formula for calculating the probability is probability number of favourable outcomes total outcomes. A marble is drawn at random from the jar. If the first two marbles are both blue what is the probability that the third marble will be red. A marble is drawn at random from the jar.

There are 10 ways to succeed. There are 25 possible outcomes p red 10 25 2 5 b if two marbles are drawn randomly what is the probability that the first is red and the second blue if the first marble is replaced in. A the marble is red. Suppose a jar contains 5 red marbles and 12 blue marbles.

A if one marble is drawn at random what is the probability that it is red. A random sample of n 3 marbles is selected from the jar. Find the probability of the given event please show your answers as reduced fractions. 4 red 6 white and 10 blue.

A draw the tree diagram for the experiment. A jar contains 15 blue and 10 red marbles. Now the number of red marbles becomes. A jar contains 20 marbles.

A jar contains 12 red marbles numbered 1 to 12 and 6 blue marbles numbered 1 to 6. 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 8 red marbles numbered 1 to 8 and 10 blue marbles numbered 1 to 10.

Find the probability of the given event. The information shows that a jar contains 10 red marbles and 30 blue marbles. Two marbles are drawn without replacement. 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.

B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3. 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. 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. Calculating the probability of obtaining a red marble.

A jar contains 4 black marbles and 3 red marbles.