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Solve the math problem 400 students are asked if they live in an apartment and have a pet: Apartment: 120 Both: 30 Pet: 90 The probability that a randomly selected student not living in an apartment has a pet is

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Answer to a math question Solve the math problem 400 students are asked if they live in an apartment and have a pet: Apartment: 120 Both: 30 Pet: 90 The probability that a randomly selected student not living in an apartment has a pet is

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Eliseo
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To find the probability that a randomly selected student not living in an apartment has a pet, you can use conditional probability. The notation for this probability is \( P(\text{Pet | Not Apartment}) \), and it is calculated as the number of students with both a pet and not living in an apartment divided by the total number of students not living in an apartment. Given: - Students living in an apartment with a pet: 30 - Students not living in an apartment with a pet: \(90 - 30 = 60\) (since there are 90 students with a pet and 30 of them live in an apartment) Now, calculate the probability: \[ P(\text{Pet | Not Apartment}) = \frac{\text{Number of students with a pet and not living in an apartment}}{\text{Total number of students not living in an apartment}} \] \[ P(\text{Pet | Not Apartment}) = \frac{60}{400 - 120} \] \[ P(\text{Pet | Not Apartment}) = \frac{60}{280} \] Now, simplify the fraction if possible. \frac{60}{280}=\frac{3}{14} So, the probability that a randomly selected student not living in an apartment has a pet is \( \frac{3}{14} \)

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