| X | -2 | -1 | 0 | 1 | 2 | | --- | --- | --- | --- | --- | --- | | P(X) | 0.2 | 0.1 | 0.3 | 0.2 | 0.2 | The variance of X will be : Option 1: 0.1 Option 2: 1.42 Option 3: 1.89 Option 4: 2.54

The answer is '1.89'. View full solution:

Applied Mathematics > Probability Distribution

Medium

applied

| $ X $ | -2 | -1 | 0 | 1 | 2 | | --- | --- | --- | --- | --- | --- | | $ P(X) $ | $ 0.2 $ | $ 0.1 $ | $ 0.3 $ | $ 0.2 $ | $0.2$ | The variance of $X$ will be :

$0.1$

$1.42$

$1.89$

$2.54$

✅ Correct Option: 3

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