Q2c. Please help me this case. this is urgent. thank you

c) A shopping outlet estimates the probability distribution of the number of stores shoppers actually enter as shown in the table below. 0 1 2 3 4 0.05 0.35 0.25 0.20 0.15 i Find the expected value of the number of stores entered ii Find the variance of the number of stores entered iii If the number of stores entered tripled (Y= 3X) for each value of X. Calculate the new expected value and variance of the number of stores entered