jaxhat646
30.07.2019 •
Mathematics
Researchers at the university of pennsylvania school of medicine have determined that children under 2 years old who sleep with the lights on have a 31% chance of becoming myopic before they are 16. children who sleep in darkness have a 27% probability of becoming myopic. a survey indicates that 26% of children under 2 sleep with some light on. find the probability that a random child under 2 will become myopic before reaching 16 years old.
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Ответ:
B
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