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Mathematics, 24.11.2020 19:00 gonzaloc

The lifespans of crocodiles have an approximately Normal distribution, with a mean of 18 years and a standard deviation of 2.6 years. What proportion of crocodiles live between 17.5 and 20.5 years? Find the z-table here.

0.3147
0.4068
0.5932
0.6853

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