MCQ
A sequence is called $...............$ if $a_{n+1}= a_n\times r.$
- Aarithmetic progression
- ✓geometric Progression
- Charmonic Progression
- Dspecial Progression
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| $X$ | $1$ | $3$ | $5$ | $7$ | $9$ |
| $(f)$ | $4$ | $24$ | $28$ | $\alpha$ | $8$ |
be $5.$ If $m$ and $\sigma^2$ are respectively the mean deviation about the mean and the variance of the data, then $\frac{3 \alpha}{m+\sigma^2}$ is equal to $..........$.