Every thursday, matt and dave's video venture has "roll-the-dice" day. A customer may choose to roll two fair dice and rent a second movie for an amount (in cents) equal to the numbers uppermost on the dice, with the larger number first. For example, if the customer rolls a two and a four, a second movie may be rented for $0. 42. If a two and two are rolled, a second movie may be rented for $0. 22. Let x represent the amount paid for a second movie on roll-the-dice day. The expected value of x is $0. 47 and the standard deviation of x is $0. 15.