MCQ
Choose the correct answer. Standard deviations for first $10$ natural numbers is:
- A$5.5$
- B$3.87$
- C$2.17$
- ✓$2.97$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Match each entry in List-$I$ to the correct entries in List-$II$.
| List-$I$ | List-$II$ |
| ($P$) $|z|^2$ is equal to | ($1$) $12$ |
| ($Q$) $|z-\bar{z}|^2$ is equal to | ($2$) $4$ |
| ($R$) $|z|^2+|z+\bar{z}|^2$ is equal to | ($3$) $8$ |
| ($S$) $|z+1|^2$ is equal to | ($4$) $10$ |
| ($5$) $7$ |
The correct option is:
$7 \times 8,10 \times 10,13 \times 12,16 \times 14, \ldots .$ is ....... .