Teaching RPSC School Lecturer Mock Test Series 2024 Engineering Mathematics Probability and Statistics Statistical Variables
If the mean of the following probability distribution of a random variable X;
| X | 0 | 2 | 4 | 6 | 8 |
| P(X) | a | 2a | a + b | 2b | 3b |
is \(\frac{46}{9}\), then the variance of the distribution is
1
\(\frac{581}{81}\)
2
\(\frac{566}{81}\)
3
\(\frac{173}{27}\)
4
\(\frac{151}{27}\)
5
Question Not Attempted