Teaching RPSC School Lecturer Mock Test Series 2024 Engineering Mathematics Probability Measures of Dispersion
If a discrete random variable X has the following probability distribution
|
X |
2 |
-1 |
|
p(x) |
1/3 |
2/3 |
Evaluate the Standard deviation
1
2.4
2
2
3
1.4
4
1.7
5
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