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The average cost of six month Georgia auto insurance in 2018 was $900. Assume the standard...

The average cost of six month Georgia auto insurance in 2018 was $900. Assume the standard deviation is σ = $150. What will be the probability of a value within $100 of the population mean?

68.26%

95.44%

78.88%

49.08%

math   Statistics-And-Probability   
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