please help with both!

6. [-/1 Points) DETAILS WANEFMAC7 9.3.015.0/50 Submissions Used Calculate the expected value of X, E(X), for the given probability distribution. X -6 -2 0 2 5 10 P(x = x) 0.1 0.2 0.1 0.5 0.1 0 E(X) Need Help? Read it Watch It Submit Answer 7. (-/1 Points) DETAILS WANEFMAC7 9.3.019.0/50 Submissions Used Calculate the expected value E(X) of the given rando'm variable x. X is the number of tails that come up when a coin is tossed 42 times. E(X) Need Help? Read It Watch It