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प्रश्न
Find the mode of the following data:
3, 5, 7, 4, 5, 3, 5, 6, 8, 9, 5, 3, 5, 3, 6, 9, 7, 4
उत्तर
The frequency table for the given data
| Value x | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Frequency f | 4 | 2 | 5 | 2 | 2 | 1 | 2 |
We observe that the value 5 has the maximum frequency.
Hence, the mode of data is 5.
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संबंधित प्रश्न
Heights of students of class X are givee in the flowing frequency distribution
| Height (in cm) | 150 – 155 | 155 – 160 | 160 – 165 | 165 – 170 | 170 - 175 |
| Number of students | 15 | 8 | 20 | 12 | 5 |
Find the modal height.
Also, find the mean height. Compared and interpret the two measures of central tendency.
The agewise participation of students in the annual function of a school is shown in the following distribution.
| Age (in years) | 5 - 7 | 7 - 9 | 9 - 11 | 11 – 13 | 13 – 15 | 15 – 17 | 17 – 19 |
| Number of students | x | 15 | 18 | 30 | 50 | 48 | x |
Find the missing frequencies when the sum of frequencies is 181. Also find the mode of the data.
Mode is
The relationship between mean, median and mode for a moderately skewed distribution is.
Calculate the mode of the following distribution:
| Class | 10 − 15 | 15 − 20 | 20 − 25 | 25 − 30 | 30 − 35 |
| Frequency | 4 | 7 | 20 | 8 | 1 |
The following table give the marks scored by students in an examination:
| Marks | 0 - 5 | 5 - 10 | 10 - 15 | 15 - 20 | 20 - 25 | 25 - 30 | 30 - 35 | 35 - 40 |
| No. of students | 3 | 7 | 15 | 24 | 16 | 8 | 5 | 2 |
(i) Find the modal group
(ii) Which group has the least frequency?
The monthly salary of 10 employees in a factory are given below:
₹ 5000, ₹ 7000, ₹ 5000, ₹ 7000, ₹ 8000, ₹ 7000, ₹ 7000, ₹ 8000, ₹ 7000, ₹ 5000
Find the mean, median and mode
For the following distribution:
| Marks | Number of students |
| Below 10 | 3 |
| Below 20 | 12 |
| Below 30 | 27 |
| Below 40 | 57 |
| Below 50 | 75 |
| Below 60 | 80 |
The modal class is ______.
The monthly income of 100 families are given as below:
| Income (in Rs) | Number of families |
| 0 – 5000 | 8 |
| 5000 – 10000 | 26 |
| 10000 – 15000 | 41 |
| 15000 – 20000 | 16 |
| 20000 – 25000 | 3 |
| 25000 – 30000 | 3 |
| 30000 – 35000 | 2 |
| 35000 – 40000 | 1 |
Calculate the modal income.
Find the mode of the following frequency distribution:
| Class: | 20 – 30 | 30 – 40 | 40 – 50 | 50 – 60 | 60 – 70 |
| Frequency: | 25 | 30 | 45 | 42 | 35 |
