Jack has a bag of marbles for a bag. There are 30 marbles in the bag, 12 red marbles, 8 blue marbles and 10 green marbles. Each red marble is worth 5 point, each blue marble is worth 3 points and each green marble is worth 2 points. What is the approximate expected value of picking a marble from the bag?
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
Jack has a bag of marbles for a bag. There are 30 marbles in the bag, 12 red marbles, 8 blue marbles
and 10 green marbles. Each red marble is worth 5 point, each blue marble is worth 3 points and each
green marble is worth 2 points.
What is the approximate expected value of picking a marble from the bag?
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