Question

what is the class mark of the class 60-69
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Answer 1

Heya,

Class mark = (lower limit + upper limit)/2

= (60 + 69) / 2

= 129/2

= 【64.5】 Answer.

HOPE IT HELPS (^^)

Answer 2

Answer:

class mark is 64.5.

Explanation:

Upper Limit = 69

Lower Limit = 60

Class mark:

Class mark, in statistics, is the average of the upper limit and the lower limit of a class in a frequency distribution and it is given by:

class mark= (upper limit+lower limit)/2

                 =(60+69)/2

                 =64.5