Important Questions for Class 10 Maths Statistics
1. If the mean of x, x+3, x+6, x+9 and x+12 is 10, then x is____
a) 1 b) 2 c) 6 d) 4 2.
2. For a frequency distribution, Mean, Median and Mode are connected by the relation__
- Mode = 3 Mean – 2Median c) Mode = 3Median – 3 Mean
- Mode = 3Median – 2 Mean d) Mode = 3 Median + 2Mean
3.If the median of data : 24,25,26,x+2,x+3,30,31,34 is 27.5, then x is___
a) 27 b) 25 c) 28 d) 30
4. The arithmetic mean of 1, 2, 3,………………n is____
a) (n+1)/2
b) (n-2)/2
c)n/2
d) n/2 + 1
5. If the median of the data: 6, 7, x-2, x, 17, 20 in ascending order is 16, then x is ___
a) 15 b) 16 c) 17 d) 18
6. If the mean of 6, 7, x, 8, y, 14 is 9, then___
a) x+y = 21 b) x+y = 19 c) x-y = 19 d) x-y = 21
7. For the following distribution,
| Class | 0-5 | 5-10 | 10-15 | 15-20 | 20-25 |
| Frequency | 10 | 15 | 12 | 20 | 9 |
the sum of lower limits of the median class and modal class is ___
a) 15 b) 25 c) 30 d) 35
SUBJECTIVE TYPE QUESTIONS
- Find the missing frequencies in the following frequency distribution, the mean is 50
Class: 0-20 20-40 40-60 60-80 80-100
f : 17 f1 32 f2 19 Total 120
- 2. If the Median of the distribution given below is 28.5, then find the value of x and y.
| Class Interval 0-10 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |
| No. of students : 5 x | 20 | 15 | y | 5 |
Total 60
- 3. Find the Mean, Median and Mode of the given data –
Class : 0-20 20-40 40-60 60-80 80-100 100-120 120-140
Frequency : 6 8 10 12 6 5 3
4. Find median of the data, using an empirical relation when it is given that Mode = 12.4 and Median = 10.5
5. Find the value of p from the following data if its mode is 65
Class: 0-20 20-40 40-60 60-80 80-100 100-120
Frequency: 6 8 p 12 6 5
where frequency 6, 8, p and 12 are in ascending order.
6. If the mean of the following data is 18, find the missing frequency p
xi : 10 15 20 25
f: 5 10 p 8
7. The mean and median of 100 observations are 50 and 52 respectively. The value of the largest observation is 100. It was later found that it is 110. Find the true mean and median.
8. Find mode, using an empirical relation, when it is given that mean and median are 10.5 and 9.6 respectively.
CASE STUDY 1:
The COVID-19 pandemic, also known as coronavirus pandemic, is an ongoing pandemic
of coronavirus disease caused by the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among humans.
The following tables shows the age distribution of case admitted during a day in two different hospitals Table 1
| Age (in years) | 5-15 | 15-25 | 25-35 | 35-45 | 45-55 | 55-65 |
| No. of cases | 6 | 11 | 21 | 23 | 14 | 5 |
| Table 2 | ||||||
| Age (in years) | 5-15 | 15-25 | 25-35 | 35-45 | 45-55 | 55-65 |
| No. of cases | 8 | 16 | 10 | 42 | 24 | 12 |
Refer to table 1)
1. Find the average age for which maximum cases occurred
2. What is the upper limit of modal class?
MCQ VIDEOS ALL CHAPTERS CLASS 10 MATHShttps://www.youtube.com/watch?v=-eBlHyBxjLg&list=PL2uPMjJCHErQZZNipbsnagBqPrCU_WRN8
MCQ Questions for Class 10 Maths all Chaptershttps://sharmatutorial.in/category/mcq-class-10-maths/
Ncert Solutions Class 10 Maths Exercise 1.1 https://10thmathsguide.com/exercise-11-class-10-maths/
Ncert Solutions Class 10 Maths Exercise 1.2
Ncert Solutions Class 10 Maths Exercise 2.1 https://10thmathsguide.com/exercise-21-class-10-maths/
Ncert Solutions Class 10 Maths Exercise 2.2
Ncert Solutions Class 10 Maths Exercise 3.1 https://10thmathsguide.com/exercise-31-class-10-maths/
Ncert Solutions Class 10 Maths Exercise 3.2 https://10thmathsguide.com/exercise-32-class-10-maths/
Ncert Solutions Class 10 Maths Exercise 3.3 https://10thmathsguide.com/exercise-33-class-10-maths/
Ncert Solutions Class 10 Maths Exercise 4.1 https://10thmathsguide.com/exercise-41-class-10-maths/
Ncert Solutions Class 10 Maths Exercise 4.2 https://10thmathsguide.com/exercise-42-class-10-maths/
Ncert Solutions Class 10 Maths Exercise 4.3 https://10thmathsguide.com/exercise-43-class-10-maths/
Important Questions for Class 10 Maths Statistics
Important Questions for Class 10 Maths Statistics
Important Questions for Class 10 Maths Statistics
Important Questions for Class 10 Maths Statistics
Important Questions for Class 10 Maths Statistics