Given the following raw scores in Algebra Examination.
47 78 72 62 57
First
class interval 28 - 32
56 50 33 68 52
42 55 34 48 60
28 57 37 56 70
56
38 47 39 41
62 42 77 56 52
68
80 55 66 62
62 59 65 54 71
n = 40
Construct a frequency distribution
table using an interval (i) of i = 5.
Solve for the range ; no. of class intervals; classmarks
Range = H.S. - L.S. =
no. c.i. =
Range / 1 =