Match the following basins in Group I with their corresponding formations in Group II. \[ \begin{array}{|c|c|} \textbf{Group I} & \textbf{Group II} \\ P. Cauvery & 1. Lohardih \\ Q. Damodar & 2. Tiratgarh \\ R. Chhattisgarh & 3. Raniganj \\ S. Indravati & 4. Kallamedu \\ \end{array} \]
Step 1: Recall characteristic formations of each basin.
- Cauvery Basin (Meso–Cenozoic, SE India): well-known Kallamedu Formation (Late Cretaceous). $\Rightarrow$ P–4.
- Damodar Basin (Gondwana, eastern India): classic coal measures including the Raniganj Formation. $\Rightarrow$ Q–3.
- Chhattisgarh Basin (Proterozoic): includes the Tiratgarh Sandstone/Formation. $\Rightarrow$ R–2.
- Indravati Basin (Proterozoic, Bastar craton): includes Lohardih Formation. $\Rightarrow$ S–1.
Step 2: Compile the mapping.
P–4, Q–3, R–2, S–1 $\Rightarrow$ option (A).
Final Answer: \[ \boxed{\text{(A) P-4, Q-3, R-2, S-1}} \]
| Group-I | Group-II | ||
| P | Ramgundam | 1 | Chhattisgarh |
| Q | Raipur Formation | 2 | Kaladgi |
| R | Bagalkot Group | 3 | Marwar |
| S | Sonia Sandstone | 4 | Godavari |
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The mean of the posterior distribution is (Answer in integer)
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