Researchers at the University of Pennsylvania School of Medicine have determined that children under 2 years...

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 33% chance of becoming myopic before they are 16. Children who sleep in darkness have a 22% 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.

Expert Solution

Answer:

Given that:

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 33% chance of becoming myopic before they are 16.

Children who sleep in darkness have a 22% probability of becoming myopic. A survey indicates that 26% of children under 2 sleep with some light on.

Probability that a random child under 2 will become myopic before reaching 16 years old.

So, answer is 0.2486 or 24.86%

orchestra answered 2 years ago

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