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 32% chance of becoming myopic before they are 16. Children who sleep in darkness have a 20% probability of becoming myopic. A survey indicates that 20% 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.

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 32% chance of becoming myopic before they are 16. Children who sleep in darkness have a 20% probability of becoming myopic. A survey indicates that 20% 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.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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