Arithmetic Elementary Statistics Quiz-2

Question 1

Time: 00:00:00
The mean of a set of data is 5. What will be the mean if ten is subtracted from each data ?

5

5

10

10

-10

-10

-5

-5

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Question 2

Time: 00:00:00
What is the mean deviation of the data 8,9,12,15,16,20,24,30,32,34?
and Find the distance of each value from that mean.

10

10

8

8

6

6

12

12

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Question 3

Time: 00:00:00
The mean and the standard deviation of a data which is comprised of a set of ten positive numbers are 8 and 2 respectively. If the sum of squares of 9 among the 10 members is 599,what is the 10th number

9

9

12

12

5

5

8

8

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Question 4

Time: 00:00:00
With what value should the highest quantity in the data : 65, 52, 14, 26, 18, 35, 32, 38 be replaced so that the mean and medium become equal?

67

67

40

40

50

50

53

53

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Question 5

Time: 00:00:00
The median of the following data is:

24.166

24.166

12.56

12.56

23.545

23.545

21.66

21.66

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Question 6

Time: 00:00:00
If the mean of the data 5,7,10,14,x,25,32,19 is x,then what is the value of x?

14

14

16

16

20

20

18

18

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Question 7

Time: 00:00:00
What is the standard Deviation (correct upto two decimal places) of the numbers: 21334, 21335, 21336, 21337 and 21338?

2.21

2.21

1.41

1.41

1.66

1.66

1.89

1.89

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Question 8

Time: 00:00:00
If mean of 29 observations is 33 and on adding one more observation the new mean becomes 34. What is the value of 30th observation?

68

68

55

55

63

63

54

54

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Question 9

Time: 00:00:00
The mean of the median, the mode and the range of the data:

15, 10, 17, 13, 25, 17, 11, 18, 14, 19, 12, 20 is:

12

12

16

16

20

20

14

14

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Question 10

Time: 00:00:00
What is the mean marks of students for the following data? (Nearest to an integer)

32

32

31.21

31.21

22.6

22.6

53.45

53.45

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