ASK YOUR TEACHER PRACTICE ANOTHER Use the table to answer the question. Note: Round ziscores to the nearest hundredth and then nd the required A values using the table. 19. [-13 Points] AUFQR1COREQ 8.4.032. A biologist found the wingspans of a group of monary butteries to be normally distributed with a mean of 54.5 mm and a standard deviation of 2.4 mm. What percent of the butterflies had the following wingspans? {Round your answers to one decimal place.) (a) less than 48.7 mm |:| % (b) between 50 and 55 mm |:|%