The Life Of A Car Battery Is Normally Distributed With Mean 900 Days And Standard Deviation 35 Days What Fraction Of Th 1 (33.85 KiB) Viewed 285 times
Please explain how the formulas are used and the concepts behind
them, I am unclear.
The life of a car battery is normally distributed with mean 900 days and standard deviation 35 days. What fraction of the batteries would be expected to survive beyond 1000 days? xH (900,352) Answer: 0.21%.
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