Class 10,Mathematics, Statistics (Arithmetic Mean of Grouped Data)

1. There will be total 20 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. The mean of five numbers is 28. If one of the numbers is excluded, the mean gets reduced by 2. The excluded number is

 45

 36

 30

 25

Question 1 of 20

2. If the mean of the following data is 18.75, then the value of p is

 18.5

 20

 30

  15

Question 2 of 20

3. The mean of the following data is:
45, 35, 20, 15, 25, 40

 15

 25

 30

 35

Question 3 of 20

4. The mean of 5 observations x, x + 2, x + 4, x + 6 and x + 8 is 11, then the value of x is:

 6

 4

 7

 11

Question 4 of 20

5. The mean of a data set with 12 observations is calculated as 19.25. If one more value is included in the data, then for the new data with 13 observations, mean becomes 20. Value of this 13th observation is

 28

 29

 31

 30

Question 5 of 20

6. The mean of first ten even natural numbers is

 100

 11

 30

 10

Question 6 of 20

7. A batsman in his 12^th innings makes a score of 63 runs and thereby increases his average score by 2. His average score after 12^th innings is

 51

 45

 41

 60

Question 7 of 20

8. Which measure of central tendency takes in account all the data?

  Mean

  Median

 Mode

  All of the above

Question 8 of 20

9. The mean () of a frequency distribution is 45. If the value of  = 20 then the value of  is:

 800

 900

 2.25

 4/9

Question 9 of 20

10. The mean of a data set with 12 observations is calculated as 19.25. If one more value is included in the data, then for the new data with 13 observations, mean becomes 20. The value of this 13^th observation is

 28

 29

 30

 31

Question 10 of 20

11.

 2

 4

 3

 5

Question 11 of 20

12. The mean of 1, 2, 3, 4 …n is given by

 A

 B

 C

 D

Question 12 of 20

13. The arithmetic mean of the following data is

 20

  19.92

 18.56

 17.3

Question 13 of 20

14. The mean of the marks obtained by 7 students in a group is 226. If the marks obtained by six of them are 340, 180, 260, 56, 275, 307, then the marks obtained by the seventh student are

  174

 164

 125

  200

Question 14 of 20

15. The mean of 15 numbers is 25. If each number is multiplied by 4, mean of the new numbers is

 100

 40

 10

 60

Question 15 of 20

16. The mean of 6 numbers is 16. With the removal of a number the mean of remaining numbers is 17. The number removed is:

 22

 6

 11

 2

Question 16 of 20

17. If the mean of the following distribution is 6, find the value of ‘p’.

  8

 7

 12

 6

Question 17 of 20

18. If there are two class intervals 10-20 and 20-30, then in which interval will 20 fall?

 In both, 10-20 and 20-30

  20-30

 10-20

 Neither in 10-20 nor 20-30

Question 18 of 20

19. Which of the following measures of central tendency takes into account all the observations?

  Mean

 Median

  Mode

  All of the above

Question 19 of 20

20.

  Multiplication

 Division

 Summation

 Subtraction

Question 20 of 20

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