$A$ grouped frequency table with class intervals of equal sizes using $250-270$ ($270$ not included in this interval) as one of the class intervals is constructed for the following data:
$268, 220, 368, 258, 242, 310, 272, 342$
$310, 290, 300, 320, 319, 304, 402, 318$
$406, 292, 354, 278, 210, 240, 330, 316$
$406, 215, 258, 236$
The frequency of the class $310-330$ is:
$268, 220, 368, 258, 242, 310, 272, 342$
$310, 290, 300, 320, 319, 304, 402, 318$
$406, 292, 354, 278, 210, 240, 330, 316$
$406, 215, 258, 236$
The frequency of the class $310-330$ is:
- A$4$
- B$5$
- C$6$
- D$7$
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Prepare a continuous grouped frequency distribution from the following data:
Mid-point Frequency $5$ $4$ $15$ $8$ $25$ $13$ $35$ $12$ $45$ $6$
Also,find the size of the class intervals.
| Mid-point | Frequency |
| $5$ | $4$ |
| $15$ | $8$ |
| $25$ | $13$ |
| $35$ | $12$ |
| $45$ | $6$ |
Also,find the size of the class intervals.
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