Statistics Test

Result

Statistics Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

The wickets taken by a bowler in 10 cricket matches are 2, 6, 4, 5, 0, 2, 1, 3, 2, 3. The mode of the data is

A
1

B
2

C
3

D
4

Solution

Given: 2, 6, 4, 5, 0, 2, 1, 3, 2, 3
Here frequency of 2 is more.
Therefore, the mode of given data is 2.
Question 2
1 / -0

The mode of 4, 5, 6, 8, 5, 4, 8, 5, 6, x, 8 is 8. The value of ‘x’ is

A
4

B
5

C
6

D
8

Solution

Here Observations 5 and 8 have the same frequency, i.e., 3.
For 8 be the mode of the data, it should have the maximum frequency.
∴ 8 should repeat itself at least once more.
⇒ x should be 8.
Question 3
1 / -0

The wickets taken by a bowler in 10 cricket matches are 2, 6, 4, 5, 0, 3, 1, 3, 2, 3. The mode of the data is

A
1

B
2

C
3

D
4

Solution

In the given data, the frequency of 3 is more than those other wickets taken by a bowler.
Therefore, Mode of given data is 3.
Question 4
1 / -0

The mode of 4, 5, 6, 8, 5, 4, 6, 5, 6, x, 8 is 6. The value of ‘x’ is

A
4

B
5

C
6

D
8

Solution

Here Observation is 6 has more frequency than that of other numbers.
∴ 6 could repeat itself at least once more.
⇒ x should be 6.
Question 5
1 / -0

For the following distribution :

Class 60-70 70-80 80-90 90-100 100-110

Frequency 13 10 15 8 11

the lower limit of the modal class is

A
90

B
80

C
70

D
100

Solution

In the given data, Maximum frequency is 15.
Therefore, the modal class is 80 – 90.
Lower limit of the modal class is 80.
Question 6
1 / -0

For the following distribution

Class Below 10 Below 20 Below 30 Below 40 Below 50 Below 60

Frequency 3 12 27 57 75 80

the modal class is

A
40 – 50

B
50 – 60

C
30 – 40

D
20 – 30

Solution

According to the question,

Class 0 – 10 10 – 20 20 – 30 30 – 40 40 – 50 50 – 60

Freq 3 9 15 30 18 5

Here Maximum frequency is 30.
Therefore, the modal class is 30 – 40.

Question 7

1 / -0

The times, in seconds, taken by 75 athletes to run a 500m race are tabulated as below:

Class	65-85	85-105	105-125	125-145	145-165	165-185	185-205
Frequency	4	5	18	20	17	7	4

The number of athletes who completed the race in less than 125 seconds is

27

17

20

18 Solution

Class	65-85	85-105	105-125	125-145	145-165	165-185	185-205
Frequency	4	5	18	20	17	7	4
Cumulative Frequency	4	9	27	47	64	71	75

Therefore, the number of athletes who completed the race in less than 125 seconds is 27.

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Re-Attempt Weekly Quiz Competition

Class	Below 10	Below 20	Below 30	Below 40	Below 50	Below 60
Frequency	3	12	27	57	75	80

Class	0 – 10	10 – 20	20 – 30	30 – 40	40 – 50	50 – 60
Freq	3	9	15	30	18	5

Class	60-70	70-80	80-90	90-100	100-110
Frequency	13	10	15	8	11

Statistics Test - 9

Result

Statistics Test - 9

Score

-

Rank

-

SHARING IS CARING

Question 1

1

2

3

4

Solution

Question 2

4

5

6

8

Solution

Question 3

1

2

3

4

Solution

Question 4

4

5

6

8

Solution

Question 5

90

80

70

100

Solution

Question 6

40 – 50

50 – 60

30 – 40

20 – 30

Solution

Question 7

27

17

20

18

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

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