Statistics Test

Result

Statistics Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

If each observation of data is divided by 6, then the arithmetic mean

A
remains the same

B
increases by 6

C
becomes 6 times the original mean

D
becomes 1/6th of the original mean
Question 2
1 / -0

The mean of first 6 composite numbers is

A
8.17

B
6.5

C
9

D
8.5
Question 3
1 / -0

If the mode of the data 6, 8, 5, 6, 7, 6, 8, 5, 7, 8, x is 6, then the value of x is

A
6

B
8

C
5

D
7
Question 4
1 / -0

Mode of the data 15, 14, 19, 20, 14, 15, 16, 14, 15, 18, 14, 19, 15, 17, 15 is

A
14

B
15

C
16

D
17
Question 5
1 / -0

The width of each of five continuous classes in a frequency distribution is 8 and the lower class limit of the lowest class is 0. The upper class limit of the highest class is

A
8

B
32

C
40

D
none of these
Question 6
1 / -0

The class marks of a frequency distribution are 10, 12, 14, 16, ... . The class corresponding to the class mark 14 is

A
11 - 13

B
13 - 15

C
14 - 16

D
12 - 14

Question 7

1 / -0

To draw a histogram to represent the following frequency distribution:

Class Interval	0 – 5	5 – 10	10 – 20	20 – 25	25 – 45
Frequency	8	12	7	23	20

The adjusted frequency for the class 25 – 45 is

20

15

10

5

Question 8
1 / -0

The mean of eight numbers is 42. If one number is excluded, their mean becomes 39. The excluded number is

A
63

B
70

C
56

D
65

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Re-Attempt Weekly Quiz Competition

Statistics Test - 3

Result

Statistics Test - 3

Score

-

Rank

-

SHARING IS CARING

Question 1

remains the same

increases by 6

becomes 6 times the original mean

becomes 1/6th of the original mean

Question 2

8.17

6.5

9

8.5

Question 3

6

8

5

7

Question 4

14

15

16

17

Question 5

8

32

40

none of these

Question 6

11 - 13

13 - 15

14 - 16

12 - 14

Question 7

20

15

10

5

Question 8

63

70

56

65

User

Question Analysis

My Perfomance

Score

-

Rank

-

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