Page 207 - Data Science class 10
P. 207
PRACTICAL QUESTIONS
Inter-Disciplinary
1. Find the mean of the following series:
3, 7, 11, 15, 19, 23, 27, 31, 35
Ans. Mean = Sum of the elements/number of elements
(3 + 7 + 11 + 15 + 19 + 23 + 27 + 31 + 35)
=
9
= 19
2. What is the median of the following dataset?
16, 8, 24, 5, 7, 12, 13, 46, 19, 16, 15, 20, 50, 56, 59, 10, 23, 25, 30, 26
Ans. Arrange the dataset in ascending order
5, 7, 8, 10, 12, 13, 15, 16, 16, 19, 20, 23, 24, 25, 26, 30, 46, 50, 56, 59
Dataset has 20 elements. So the median is:
(10th element + 11 element)
th
Median =
2
(19 + 20)
= 2 = 19.5
3. The daily wages of some employees are given below:
Wages
100
200
300
400
500
600
Find the mean from the above data.
(100 + 200 + 300 + 400 + 500 + 600)
Ans. Mean =
6
2100
= = 350
6
4. The daily wages of some employees are given below:
16, 8, 24, 5, 7, 12, 13, 46, 19, 16, 15, 20, 50, 56, 59, 10, 23, 25, 30, 26
Wages
500
200
600
300
100
Find the mean from the above data.
Practical Questions 205

