Suppose the age that children learn to walk is normally distributed with mean 13 months and standard deviation 1.4 month. 16 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible. Find the IQR for the average first time walking age for groups of 16 people. Q1 =(______) months Q3 =(______) months IQR:(______) months
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!
Suppose the age that children learn to walk is
Find the IQR for the average first time walking age for groups of 16 people.
Q1 =(______) months
Q3 =(______) months
IQR:(______) months
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