Ajar contains five blue marbles and four red marbles. suppose you choose a marble at random , and do not replace it.then you choose a second marble. find the probability of the following event: both selected marbles are red.

We know there are a total of 9 marbles in the bag. If we draw one and don't replace it, there are 8 marbles left in the bag during our second choice...

we have  4/9 for our first draw and 3/8 for our second draw...multiplied together, we have a 1/6 chance of drawing a red marble and another red marble without replacing any after each draw.

p = 4

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