please show conditions
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!
A man plays a dice game that involves throwing 3 dice at a time. His winnings are directly related to the number of threes recorded. If the die are fair, what is the probability distribution that affects the outcome of each throw? The frequencies of the threes observed in 80 trials are recorded, together with their
Number of threes Expected Count Observed Count
0 27 30
1 32 20
2 12 19
3 9 11
(chi square goodness of fit)please show conditions
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