please answer summative in statistics and probability math grade 11

5 There are lots of mistakes in the computation and incomplete table Find the Mean, Variance and Standard Deviation of a Discrete Probability Distribution (show your solution) P(X) X - P(X) (x - ")-P(X) 0.40 1'0,40 = 0.40 2 0.20 a 0.20 0.20 Rubric Accuracy of the solutions 10 All computations are accurate 9 There is one mistake in the computations There are 2-3 mistakes in the computations There are 4-5 mistakes in the computations There are more than 6 mistakes in the computation There are lots of mistakes in the computation Solution Mean Variance Standard Deviation Rubric for each task Accuracy of the solutions The tasks