3. The weekly wages (in Rs.) of 30 workers in a factory are.

830,835,890,810,835,836,869,845,898,890,820,860,832,833,855,845,804,808,812,840,885,835,836,878,840,868,890,806,840 

Using tally marks make a frequency table with intervals as 800–810, 810–820 and so on.

Answers (1)

Using tally marks a frequency table with intervals as 800–810, 810–820 and so on  is as shown : .

Intervals Tally MARKS Frequency
800-810               \mid \mid \mid 3
810-820                \mid \mid 2
820-830                  \mid 1
830-840          \bcancel{\mahsf{\mid \mid \mid \mid }} \mid \mid \mid \mid 9
840-850                 \bcancel{\mahsf{\mid \mid \mid \mid }} 5
850-860                   \mid 1
860-870                  \mid \mid \mid 3
870-880                   \mid 1
880-890                   \mid 1
890-900                 \mid \mid \mid \mid 4
     

 

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