Statistics Test

Result

Statistics Test - 4

Score
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Weekly Quiz Competition

Question 1
1 / -0

While computing mean of a grouped data, we assume that the frequencies are

A
centered at the lower limits of the classes

B
centered at the upper limits of the classes

C
centered at the class marks of the classes

D
evenly distributed over all the classes
Question 2
1 / -0

The graphical representation of a cumulative frequency distribution is called

A
Bar graph

B
Histogram

C
Frequency polygon

D
Ogive
Question 3
1 / -0

Construction of a cumulative frequency table is useful in determining the

A
mean

B
median

C
mode

D
all of the above
Question 4
1 / -0

The class mark of the class 15.5 – 20.5 is

A
15.5

B
20.5

C
18

D
5

Question 5

1 / -0

Consider the following distribution:

Marks obtained	Number of students
Less than 10	5
Less than 20	12
Less than 30	22
Less than 40	29
Less than 50	38
Less than 60	47

The frequency of the class 50 – 60 is

9

10

38

47

Question 6
1 / -0

For the following distribution:

Class 0–8 8–16 16–24 24–32 32–40

Frequency 12 26 10 9 15

The sum of upper limits of the median class and model class is

A
24

B
40

C
32

D
16
Question 7
1 / -0

The runs scored by a batsman in 35 different matches are given below:

Runs scored 0–15 15–30 30–45 45–60 60–75 75–90

Frequency 5 7 4 8 8 3

The number of matches in which the batsman scored less than 60 runs are

A
16

B
24

C
8

D
19

Question 8

1 / -0

Consider the following frequency distribution of the height of 60 students of a class:

Height (in cm)	Number of students
150 – 155	15
155 – 160	13
160 – 165	10
165 – 170	8
170 – 175	9
175 – 180	5

The sum of the lower limit of the modal class and upper limit of the median class is

310

315

330

320

Question 9
1 / -0

The class marks of the class 18–22 is

A
4

B
18

C
22

D
20

User

Question Analysis

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My Perfomance

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Re-Attempt Weekly Quiz Competition

Class	0–8	8–16	16–24	24–32	32–40
Frequency	12	26	10	9	15

Runs scored	0–15	15–30	30–45	45–60	60–75	75–90
Frequency	5	7	4	8	8	3

Statistics Test - 4

Result

Statistics Test - 4

Score

-

Rank

-

SHARING IS CARING

Question 1

centered at the lower limits of the classes

centered at the upper limits of the classes

centered at the class marks of the classes

evenly distributed over all the classes

Question 2

Bar graph

Histogram

Frequency polygon

Ogive

Question 3

mean

median

mode

all of the above

Question 4

15.5

20.5

18

5

Question 5

9

10

38

47

Question 6

24

40

32

16

Question 7

16

24

8

19

Question 8

310

315

330

320

Question 9

4

18

22

20

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

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