The XO Group Inc. Conducted a survey of 13,000 brides and grooms married in the United States and found that the average cost of a wedding is (XO Group website, January 5, 2015 ). Assume that the cost of a wedding is normally distributed with a mean of 29,858 and a standard deviation of 5,600. B. What is the probability that a wedding costs between 20000 and 30000 (to 4 decimals)?
