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Question

If the class intervals in a frequency distribution are (7273.9),(7475.9),(7677.9),(7879.9), the mid-point of the class (7475.9) is
  1. 74.50
  2. 74.90
  3. 74.95
  4. 75.00

A
74.90
B
74.95
C
75.00
D
74.50
Solution
Verified by Toppr

We have to find mi-point of class interval between (7475.9
Upper class limit =75.9
Lower class limit =74
Mid-point of class =Upperlimit+Lowerlimit2

=75.9+742

=149.92
=74.95

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