d. For the 16 people, find the probability that the average coffee consumption is between 15.5 and 18.5 ounces of coffee per day. e. For part d), is the assumption that the distribution is normal necessary? OYes No f. Find the IQR for the average of 16 coffee drinkers. Q1 = ounces Q3 = ounces IQR: ounces
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!
Continuous of the question: The amount of coffe that people drink per day is
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