You hope to rent an unfurnished one-bedroom apartment in Dallas next year. You call a friend who lives there and ask him to give you an estimate of the mean monthly rate. Having recently taken a statistics course, your friend tells you that the mean monthly rate for unfurnished one-bedroom apartments in Dallas is 1200 with a standard deviation of200. Based on this information, What is the range of monthly rates that you can expect to pay for an unfurnished one-bedroom apartment in Dallas?