GATE DA · 2026 · DA
Question 57: Probality and Statistics
Give it a try, then reveal the answer to check your work.
Question 57
DANAT2 marksNeeds review
A clinic specializes in testing for a disease D. The result of the test can be either positive or negative.
A study revealed that if a person suffers from the disease D, the test result in that clinic comes out positive 80% of the time, and negative 20% of the time. If a person is not suffering from the disease D, the test comes out positive 10% of the time and negative 90% of the time. It is also known that among the general population, the disease D occurs in 30% of the individuals.
If a person tests positive for D in that clinic, the probability that he/she actually suffers from the disease D is ________ . (Rounded off to two decimal places)
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerEXPLORE & PRACTISE
Paper and topic context
See where this question comes from and choose what to practise next.
2026DA
GATE DA 2026 · Paper 1
Data Science and Artificial Intelligence · Original paper archive
- Section
- Data Science and Artificial Intelligence
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
Practise related topics
Explore more previous year questions using this question’s imported topic tags.
data science
GATE DA previous year questions
artificial intelligence
GATE DA previous year questions
computing
GATE DA previous year questions
probality statistics
GATE DA previous year questions
Probality and Statistics
GATE DA previous year questions
Comments
Ask a question, share your approach, or help someone understand.
Log in to view the discussion
You’re not logged in. Log in or create an account to see discussions and add comments.