Is the number of trials 4 or 5?

A board game has a spinner on a circle that has ve equal sectors, numbered 1, 2, 3, 4, and 5, respectively. If a player has four spins, Let X be the number of times a player spins an even number. Calculate: - E[X] (1 decimal place}= [a] +- Var[X](1 decimal place) = [b]