Mathematics · 2022
JEE Main · 30 June 2022, Shift 1 · Q29
The probability distribution of X is: For the minimum possible value of d, sixty times the mean of X is equal to \ \ \ \.
The probability distribution of X is :
For the minimum possible value of d, sixty times the mean of X is equal to \_\_\_\_.
| X | $\displaystyle 0$ | $\displaystyle 1$ | $\displaystyle 2$ | $\displaystyle 3$ |
| P(X) | $\displaystyle \frac{1-\mathrm{d}}{4}$ | $\displaystyle \frac{1+2 \mathrm{~d}}{4}$ | $\displaystyle \frac{1-4 \mathrm{~d}}{4}$ | $\displaystyle \frac{1+3 \mathrm{~d}}{4}$ |
Official answer
75
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.