A market researcher at a major automobile company classified households by car ownership. The relative frequencies of households for each category of ownership are shown below: Number of cars per household Relative frequency 0 0.10 1 0.30 2 0.40 3 0.12 4 0.06 5 0.02 Calculate the expected value and standard deviation of the random variable and interpret the result.
A market researcher at a major automobile company classified households by
car ownership. The relative frequencies of households for each category of
ownership are shown below:
Number of cars per household Relative frequency
0 0.10
1 0.30
2 0.40
3 0.12
4 0.06
5 0.02
Calculate the
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