David wise handles his own investment portfolio and has done so for so many years. listed below is the holding time( recorded to the nearest whole year) between purchase and sale for his collection of 36 socks.
8 8 6 11 11 9 8 5 11 4 8 5 14 7 12 8 6 11 9 7
9 15 8 8 12 5 9 8 5 9 10 11 3 9 8 6
how many classes would you purpose?
organize the data into a frequency distribution? round your class values to 1 decimal place.