the mean length is 15.4 inches and the standard deviation is 4.5 inches

2a) A Current Texas Parks and Wildlife regulations (laws) only allow fishermen to keep Red Drum fish that are between 20 and 28 inches long*. Fish that are any other length must be thrown back. Assume that the distribution of lengths of Red Drum fish is approximately normally distributed. What is the probability that a Red Drum fish caught on the Texas coast can be brought home for dinner? Round to 4 decimals. "Texas Parks and Wildlife, "Saltwater Bag and Length Limits", accessed July 10, 2014, http://www.tpwd.state.tx.us/regulations/outdoor-annual/fishing/saltwater-fishing/saltwater-bag- and-length-limits