when coin is flipped 5 times probability is 1/2
so coin heads comes out to be 2.5
This is a binomial distribution with a probability of success = 0.5 (fair coin).
n=10
so
mean = E[x] = np =10*0.5 =5
8.) Area= 22 squared, Perimeter= 26
9.) Area= 44 squared, Perimeter= 30
Without context, d^3 + e^3 is equal to the equation you just showed.