Find the probability of the given event please show your answers as reduced fractions.
A jar contains 10 red marbles.
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.
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.
If the first two marbles are both blue what is the probability that the third marble will be red.
Suppose a jar contains 5 red marbles and 12 blue marbles.
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.
A jar contains 10 red marbles and 30 blue marbles.
Now the number of red marbles becomes.
Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles.
A marble is drawn at random from the jar.
There are 10 ways to succeed.
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.
Calculating the probability of obtaining a red marble.
A marble is drawn at random from the jar.
A random sample of n 3 marbles is selected from the jar.
A draw the tree diagram for the experiment.
A jar contains 4 black marbles and 3 red marbles.
A if one marble is drawn at random what is the probability that it is red.
A jar contains 15 blue and 10 red marbles.
The formula for calculating the probability is probability number of favourable outcomes total outcomes.
Two marbles are drawn without replacement.
The information shows that a jar contains 10 red marbles and 30 blue marbles.
B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3.
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.
A jar contains 10 red marbles numbered 1 to 10 and 10 blue marbles numbered 1 to 10.
A jar contains 20 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.
Find the probability of the given event.
A the marble is red.
10 x 30 red marbles green marbles i e.
4 red 6 white and 10 blue.
35 let us consider the number of red marbles added be x.
A jar contains 8 red marbles numbered 1 to 8 and 10 blue marbles numbered 1 to 10.