chance of selling any one property during a week. The chance of selling any one property is independent of selling another property. a. What probability model would be appropriate for describing the number of properties sold each week? b. Compute the expected number of properties to be sold in a week. c. Compute the standard deviation of the number of properties sold each week. d. Compute the probability of selling one property in one week. e. Compute the probability of selling five properties in one week. f. Compute the probability of selling at least three properties in one week.
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!
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