Question: Need Help? Read It Master It 11. [-/1 Points] DETAILS HARMATHAP12 7.1.048. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A computer store offers used computers

 Need Help? Read It Master It 11. [-/1 Points] DETAILS HARMATHAP12

Need Help? Read It Master It 11. [-/1 Points] DETAILS HARMATHAP12 7.1.048. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A computer store offers used computers free to local middle schools. Of the 55 machines available, nine have defective memories, seven others have defective keys, and the remainder have no defects. If a teacher picks one at random, what is the probability that she will select a defective computer? (Enter your probability as a fraction.) Need Help? Read It Watch It 4

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