Selina Solutions Class 10 Maths Chapter 24 Measures of Central Tendency
Recalling the concepts learned from the previous chapter, the practice consists of a mixture of problems based on extracting the mean, median, polymer, and pylon for appropriate questions. If students are looking for a resource to clarify their doubts, stop here at Selina Solutions of Class 10 Mathematics as these solutions have been created by experts from Mathematics PDF Solutions keeping in mind the latest ICSE patterns. These practice solutions are short Selina solutions for class 10 mathematics chapter 24 central trend practice measures pdf available in the following link.
Selina Solutions Concise Maths Class 10 Chapter 24 Measures of Central Tendency Exercise 24(D)
1. Find the mode of the following data:
(i) 7, 9, 8, 7, 7, 6, 8, 10, 7 and 6
(ii) 9, 11, 8, 11, 16, 9, 11, 5, 3, 11, 17 and 8
Solution:
(i) It’s seen that 7 occurs 4 times in the given data.
Hence, mode = 7
(ii) Mode = 11
As 11 occurs 4 times in the given data.
2. The following table shows the frequency distribution of heights of 50 boys:
Height (cm) | 120 | 121 | 122 | 123 | 124 |
Frequency | 5 | 8 | 18 | 10 | 9 |
Find the mode of heights.
Solution:
Clearly,
Mode is 122 cm because it has occurred the maximum number of times.
i.e. frequency is 18.
3. Find the mode of following data, using a histogram:
Class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 |
Frequency | 5 | 12 | 20 | 9 | 4 |
Solution:
Clearly,
Mode is in 20-30, because in this class there are 20 frequencies.
4. The following table shows the expenditure of 60 boys on books. Find the mode of their expenditure:
Expenditure (Rs) | No. of students |
20-25 | 4 |
25-30 | 7 |
30-35 | 23 |
35-40 | 18 |
40-45 | 6 |
45-50 | 2 |
Solution:
Clearly,
Mode is in 30-35 because it has the maximum frequency.
0 Comments
Please Comment