The times,in seconds,taken by $150$ athletes to run a $110\, m$ hurdle race are tabulated below:
Class (seconds) $13.8-14.0$ $14.0-14.2$ $14.2-14.4$ $14.4-14.6$ $14.6-14.8$ $14.8-15.0$ Frequency $2$ $4$ $5$ $71$ $48$ $20$
The number of athletes who completed the race in less than $14.6\, s$ is:
| Class (seconds) | $13.8-14.0$ | $14.0-14.2$ | $14.2-14.4$ | $14.4-14.6$ | $14.6-14.8$ | $14.8-15.0$ |
| Frequency | $2$ | $4$ | $5$ | $71$ | $48$ | $20$ |
The number of athletes who completed the race in less than $14.6\, s$ is:
- A$11$
- B$71$
- C$130$
- D$82$
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The number of families having an income range (in $Rs.$) of $16000-19000$ is:
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| Income more than $10000$ | $100$ |
| Income more than $13000$ | $85$ |
| Income more than $16000$ | $69$ |
| Income more than $19000$ | $50$ |
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| Marks | $30-35$ | $35-40$ | $40-45$ | $45-50$ | $50-55$ | $55-60$ | $60-65$ |
| Frequency | $14$ | $16$ | $18$ | $23$ | $18$ | $8$ | $3$ |
Determine the median percentage of marks.
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