can you give me an explanation?

An unfair coin is ipped. If a head turns up, you win $1. If a tail turns up, you lose $1. The probability ofa head is 0.58 and the probability of a tail is 0.42. What is the expected value of the game? Let X be the random variable for the amount won on a single play of this game. Fill in the probabilities for the probability distribution of the random variable X. (Type integers or decimals.) The expected value of the game is $D. (Type an integer or a decimal. Round to the nearest cent as needed.)