The life expectancy of sport utility vehicles follows a normal distribution with a mean of 145.8...
The life expectancy of sport utility vehicles follows a normal distribution with a mean of 145.8 thousands of miles and a standard deviation of 25.32 thousands of miles.
a) Find P(x ≥ 150), the probability an SUV will last 150 thousand miles or higher. Round the z-score to 2 decimal places. Don't round the final answer.
b) The cut-off life expectancy of a SUV that represents the 27th percentile (lowest 27% of all SUV life expectancies). Round answer to 2 decimal places.
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The life expectancy of sport utility vehicles follows a normal
distribution with a mean of 145.8...
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