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4 in a deck of 52, 2 red, 2 black
I assume we do not replace the 8's after we pick one of them. This is sampling without replacement. Since there are four 8s, the odd of picking one of them out of 52 cards is 4/52 the first time, then we have three 8s left and only 51 cards so, 3/51 and then 2/50 the third time. The odd of drawing three consecutive eights is the product of those three probabilities. This is 4/52x3/51x2/50
decate
It is because of risk and reward . we work on a reward system do things right you are rewarded do things wrong , well things go wrong.
There are a few good things about graphs. Graphs help gather data making it easier for people to short things out.