According to R.L. Polk & Co., the average age of cars and light trucks in the US in 2011 was 10.8 years. Assume that the standard deviation for this population is 3.7 years. A sample of 35 randomly selected vehicles was selected. What is the probability that the sample mean will be greater that 10 years? O a 0.9846 Ob 0.7812 O c. 0.8997 Od 0.5469

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