Alex is a physical therapist who specialises inleg injuries. His patients differ in age and typeof injury.Knee pain Ankle pain0-12 years old213-19 years old43What is the probability that a randomly selectedpatient is 13-19 years old given that the patientsuffers from knee pain?

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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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Alex surveyed some students at his school, asking about their favorite sport and whether they have a pet. What is the probability that a student in this survey has pets? Has Pets No Pets Total O 0.063 Basketball 16 12 28 O 0.110 Football 90 72 162 O 0.433 Baseball 38 26 64 O 0.567 Total 144 110 254 O 0.642
A statistics teacher gives a 10-question multiple-choice pop quiz with five answer choices per problem. Brandon is not prepared and has to guess the answer for each of the 10 questions. The teacher explains that students will receive a free homework pass if they answer at least five questions correctly. What is the probability that Brandon will earn a free homework pass? A. 0.006 B. 0.026 C. 0.033 D. 0.967 E. 0.994
I have a compound probability question.
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A university student faces a statistics exam, which offers 4 response possibilities. The probability that said student knows the answer to the question is 80% while the probability that he asks it randomly is 20%, also if the student asks it randomly, the probability that he chooses the correct answer is 20%. 25% So if the student answers a question correctly, what is the probability that she actually knows the answer? what is the correct? a. 0.05 b. 0.85 c. None of the above d. 0.9411
The 2010 census found that 13.9% of adults in the United States identified themselves as being of Hispanic origin. An opinion poll plans to interview 1500 adults at random. Find the probability that such a sample will contain 12% or fewer individuals of Hispanic origin. a. 0.017 O b.0.015 Oc.0.983 O d.0.013
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Alex is a physical therapist who specialises in leg injuries. His patients differ in age and type of injury. Knee pain Ankle pain 0-12 years old 2 2 13-19 years old 4 3 What is the probability that a randomly selected patient is 13-19 years old given that the patient suffers from knee pain?