Statistics and Probability: JEE Main 2021 Mathematics question

Let X be a random variable with distribution. x | $-$2 | $-$1 | 3 | 4 | 6 P(X = x) | ${1 \over 5}$ | a | ${1 \over 3}$ | ${1 \over 5}$ | b If the mean of X is 2.3 and variance of X is $\sigma$², then 100 $\sigma$² is equal to :