Advertisements
Advertisements
प्रश्न
The arithmetic mean and mode of a data are 24 and 12 respectively, then find the median of the data.
उत्तर
Given that the arithmetic mean and mode of a data are 24 and 12 respectively. That is,
MEAN = 24
MODE = 12
We have to find median
We know that
MODE = 3 × MEDIAN - 2 × MEAN
⇒ 12 = 3 × MEDIAN - 2 × 24
⇒ 3 × MEDIAN = 12 +(2 × 24)
⇒ 3 × MEDIAN = 12+ 48
⇒ 3 × MEDIAN = 60
⇒ MEDIAN = `60/3`
⇒ MEDIAN = 20
APPEARS IN
संबंधित प्रश्न
Find the mode of 14, 25, 14, 28, 18, 17, 18, 14, 23, 22, 14, 18.
Explain, by taking a suitable example, how the arithmetic mean alters by
(i) adding a constant k to each term
(ii) subtracting a constant k from each them
(iii) multiplying each term by a constant k and
(iv) dividing each term by a non-zero constant k.
Find the median of the following data (1-8)
25, 34, 31, 23, 22, 26, 35, 29, 20, 32
Find the median of the following data : 41, 43, 127, 99, 61, 92, 71, 58, 57 If 58 is replaced
by 85, what will be the new median.
Find out the mode of the following marks obtained by 15 students in a class:
Marks : 4, 6, 5, 7, 9, 8, 10, 4, 7, 6, 5, 9, 8, 7, 7.
If the mean of 2, 4, 6, 8, x, y is 5, then find the value of x + y.
The mean of n observations is X. If each observation is multiplied by k, the mean of new observations is
The mean of a, b, c, d and e is 28. If the mean of a, c, and e is 24, What is the mean of band d?
The mean salary of 20 workers is Rs.10,250. If the salary of office superintendent is added, the mean will increase by Rs.750. Find the salary of the office superintendent.
If the mean of the following data is 20.2, find the value of p:
| x | 10 | 15 | 20 | 25 | 30 |
| f | 6 | 8 | p | 10 | 6 |
