the american automobile association (aaa) reported that families planning to travel over the labor day weekend would spend an average of $749. assume that the amount spent is normally distributed with a standard deviation of $225. use the standard distribution table attached and answer the following questions. a. what is the probability of family expenses for the weekend being less than $400? (3 points) b. what is the probability of family expenses for the weekend being less than $800 or more? (3 points) c. what is the probability that family expenses for the weekend will be between $500 and $1,000? (3 points) d. what would the labor day weekend expenses have to be for the 5% of the families with the most expensive travel plans? (3 points)