Statistics I and II (Objective)
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Civil Services
UPSC Indian Statistical Service 2026: Statistics I and II Objective Papers

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UPSC ISS stands for UPSC Indian Statistical Service 2026: Statistics I and II Objective Papers and is an entrance examination in the Civil Services group. It is a single-stage Statistics I and II (Objective) paper.
UPSC ISS has 160 questions worth 400 marks in 240 minutes, covering Statistics-I (80 questions, 200 marks), Statistics-II (80 questions, 200 marks). This pattern is marked review-pending: it rests on consistent corroboration from secondary sources because the examining body's own document could not be read directly, so check it against the official notification before you rely on it.
Yes. Each incorrect answer deducts 0.833 marks in UPSC ISS, and an unanswered question scores zero.
The figures on this page describe the UPSC ISS pattern for the 2026 cycle and were last checked on 10 September 2026, against the source linked on this page. It carries a review-pending label rather than an official one, which is shown on the page rather than hidden.
The UPSC ISS tests here are built to the sections the official pattern names (Statistics-I and Statistics-II), and each is checked against that pattern before it is published. Granular topic labels beneath those sections are a TakeMockTest preparation map, not an official subtopic list, unless stated otherwise.