Question: The joint probability table for X and Y is given in the following table. the entries represent the probability of X and Y concurrently taking

The joint probability table for X and Y is given in the following table. the entries represent the probability of X and Y concurrently taking on the specific values. However, two of the events have been accidentally blotted out. Fortunately, it is known that the expected values of X and Y are 11.8 and 33.3 respectively. Calculate the correlation between X and Y

X=10 X=12 X=20

Y=30 0.3 0 0

Y=42 0 0.4 0

Y=25 ? 0 ?

I know all parts but i could not get Covariance to calculate the correlation

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