Subjects probability

Walk Daily Probability Dd1101

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1. **State the problem:** We want to find the probability that a randomly selected person from the survey walks daily. 2. **Identify the data:** From the table: - Walk Daily and Have a Dog: 78 - Walk Daily and Do Not Have a Dog: 52 - Do Not Walk Daily and Have a Dog: 43 - Do Not Walk Daily and Do Not Have a Dog: 62 3. **Calculate total number of participants:** $$78 + 52 + 43 + 62 = 235$$ 4. **Calculate total number of people who walk daily:** $$78 + 52 = 130$$ 5. **Use the probability formula:** $$P(\text{Walk Daily}) = \frac{\text{Number who walk daily}}{\text{Total number of participants}} = \frac{130}{235}$$ 6. **Simplify the fraction:** $$\frac{130}{235} = \frac{\cancel{5} \times 26}{\cancel{5} \times 47} = \frac{26}{47}$$ 7. **Final answer:** The probability that a randomly selected person walks daily is $$\boxed{\frac{26}{47}}$$