Question

10-20, 20-30 ਵਰਗ ਅੰਤਰਾਲ ਵਿੱਚ, ਕਿਸ ਵਰਗ ਅੰਤਰਾਲ ਵਿੱਚ ਸ਼ਾਮਿਲ ਹੋਵੇਗਾ । In the class intervals 10-z's​

Answer 1

Step-by-step explanation:

10−19,20−29,30−39,...

Here the class intervals are not continuous. To make them continuous take the mean of upper limit of first class and lower limit of second class.

Mean = 219+20 =19.5, which gives the upper limit of first class and lower limit of second class for the continuous class intervals.

CLICK THE IMAGE