Mathematics, 09.07.2019 21:30 hdkdkdbx

The life spans of elephants in a columbus zoo are normally distributed. the average elephant lives 60 years: the standard deviation is 2 years. find a range of elephant's life spans which lies within 1 standard deviation, about 68% between 58 and 62 years between 56 and 64 years between 54 and 66 years between 50 and 60 years

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