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The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 201 hours and a standard deviation of 11 hours. Find

The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 201 hours and a standard deviation of 11 hours. Find the first quartile.

(Multiple Choice Question)

a) 198.25

b) 193.63

c) 208.37

d) 203.75

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