Mht Cet
Statistics
MHT CET 2024 11th May Evening Shift
MCQ+2 / -02024
If for some $x \in \mathbb{R}^{+} \cup\{0\}$, the frequency distribution of the marks obtained by 20 students in a test is
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| Marks : | 2 | 3 | 5 | 7 |
|---|---|---|---|---|
| Frequency : | $(x+1)^2$ | $2x-5$ | $x^2-3x$ | $x$ |
then the mean of the marks is