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The Time For This Event For Boys In School Is Known To Possess A Normal Distribution With A Mean Of 450 Seconds And A Standard Deviation Of 50 Seconds. They Want To Recognize The Fastest 10% Of The Boys. What Time Would The Boys Need To Beat . - Math Discussion

The time for this event for boys in school is known to possess a normal distribution with a mean of 450 seconds and a standard deviation of 50 seconds. they want to recognize the fastest 10% of the boys. what time would the boys need to beat .