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Terri Vogel, an amateur motorcycle racer, averages 129.41 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.29 seconds
Terri Vogel, an amateur motorcycle racer, averages 129.41 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.29 seconds . The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. (Source: log book of Terri Vogel) Let X be the number of seconds for a randomly selected lap. Round all answers to 4 decimal places where possible.
The fastest 2% of laps are under __________________ seconds.
The middle 60% of her laps are from __________ seconds to _________ seconds.
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