The following is number of trees found in Colo-i-Suva at 21 locations within the area:

41 54 22 28 31 39 58

63 48 67 47 58 37 26

55 61 47 59 36 48 54

i. Construct a grouped frequency distribution for the above data using 5 classes.

ii. Draw a histogram and frequency polygon.

iii. Draw an Ogive.