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Draw a histogram for the following frequency table:
| Class interval | 5 - 9 | 10 - 14 | 15 - 19 | 20 - 24 | 25 - 29 | 30 - 34 |
| Frequency | 5 | 9 | 12 | 10 | 16 | 12 |
Concept: undefined >> undefined
Draw a histogram for the following cumulative frequency table:
| Marks | Less than 10 | Less than 20 | Less than 30 | Less than 40 | Less than 50 | Less than 60 |
| Number of student | 7 | 18 | 30 | 45 | 55 | 60 |
Concept: undefined >> undefined
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Draw a histogram for the following cumulative frequency table:
| Class interval | 0 - 10 | 10 - 20 | 20 - 30 | 30 - 40 | 40 - 50 |
| Cumulative frequency | 6 | 10 | 18 | 32 | 40 |
Concept: undefined >> undefined
Draw a histogram and a frequency polygon for the following data:
| Marks | 0 - 20 | 20 - 40 | 40 - 60 | 60 - 80 | 80 - 100 |
| No. of students | 12 | 18 | 30 | 25 | 15 |
Concept: undefined >> undefined
Draw a histogram and a frequency polygon for the following data:
| Wages | 150 - 200 | 200 - 250 | 250 - 300 | 300 - 350 | 350 - 400 | 400 - 450 |
| No. of workers | 25 | 40 | 35 | 28 | 30 | 22 |
Concept: undefined >> undefined
Draw a frequency polygon for the following data:
| Expenses | 100 - 150 | 150 - 200 | 200 - 250 | 250 - 300 | 300 - 350 | 350 - 400 |
| No. of families | 22 | 37 | 26 | 18 | 10 | 5 |
Concept: undefined >> undefined
Draw a frequency polygon for the following data:
| Class | 15 - 20 | 20 - 25 | 25 - 30 | 30 - 35 | 35 - 40 | 40 - 45 |
| Frequency | 5 | 12 | 15 | 26 | 18 | 7 |
Concept: undefined >> undefined
Draw a frequency polygon for the following data:
| Marks | 5 - 9 | 10 - 14 | 15 - 19 | 20 - 24 | 25 - 29 | 30 - 39 |
| No. of students | 7 | 11 | 15 | 22 | 18 | 5 |
Concept: undefined >> undefined
Which wave property determines (a) loudness, (b) pitch?
Concept: undefined >> undefined
What are wavelength, frequency, time period and amplitude of a sound wave?
Concept: undefined >> undefined
Guess which sound has a higher pitch: guitar or car horn?
Concept: undefined >> undefined
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
Concept: undefined >> undefined
A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source?
Concept: undefined >> undefined
Distinguish between loudness and intensity of sound.
Concept: undefined >> undefined
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
Concept: undefined >> undefined
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
Concept: undefined >> undefined
What is loudness of sound? What factors does it depend on?
Concept: undefined >> undefined
What is meant by measurement?
Concept: undefined >> undefined
Define Standard metre.
Concept: undefined >> undefined
Name two units of length which are bigger than a metre. How are they related of the metre?
Concept: undefined >> undefined
