The table below shows the preferred mode of transportation for individuals in town A by age group.If person is randomly chosen, what is the probability that the person prefers train transportation given that he is 35 or
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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group. Use for questions 39-41.
to
4.
50
Age
Car
Bus
Train
18-25
147
221
107
26-34
230
194
76
35-49
218
130
87
50+
156
211
45
754756
345
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