The following data represent the high-temperature distribution for a summer month in a city for some of the last 130 years. Treat the data as a population. Complete parts (a) through (c). Temperature 50-59 60-69 70-79 80-89 90-99 100-109 Days 308 1494 1542 248 7 (a) Approximate the mean and standard deviation for temperature. H = 79.9 (Round to one decimal place as needed.) (Round to one decimal place as needed.)