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Battery packs in electric go-carts need to last a fairly long time. The run-times (time until

it needs to be recharged) of the battery packs made by a particular company are Normally distributed with a mean of 2 hours and a standard deviation of 20 minutes.

Reference: Ref 1-30


What percentage of these battery packs lasts longer than 3 hours (rounded to 2 decimal places)?

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The percentage of these battery... View the full answer

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