$A$ 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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Similar Questions
After arranging the observations in ascending or descending order,the observation which is obtained in the middle is called .............. of the data.
Easy
View SolutionDraw a histogram to represent the following grouped frequency distribution:
Ages (in years) Number of teachers $20-24$ $10$ $25-29$ $28$ $30-34$ $32$ $35-39$ $48$ $40-44$ $50$ $45-49$ $35$ $50-54$ $12$
| Ages (in years) | Number of teachers |
| $20-24$ | $10$ |
| $25-29$ | $28$ |
| $30-34$ | $32$ |
| $35-39$ | $48$ |
| $40-44$ | $50$ |
| $45-49$ | $35$ |
| $50-54$ | $12$ |
Medium
View SolutionThe marks obtained (out of $50$ marks) by $30$ students in a mathematics test are as given below:
$37, 22, 35, 42, 10, 16, 31, 22, 20, 27$
$27, 20, 31, 40, 35, 40, 27, 16, 47, 22$
$40, 22, 35, 20, 37, 20, 37, 47, 42, 31$
Represent this data in a frequency distribution table.
$37, 22, 35, 42, 10, 16, 31, 22, 20, 27$
$27, 20, 31, 40, 35, 40, 27, 16, 47, 22$
$40, 22, 35, 20, 37, 20, 37, 47, 42, 31$
Represent this data in a frequency distribution table.
Easy
View SolutionIf the information gathered by an investigator is from an already existing source of data,then such information is called .........
Easy
View SolutionThe range of the observations: $7, 9, 7, 5, 6, 6, 9, 18, 8, 8, 6$ is ..........
Easy
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