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Statistics

Short Answer Type

321.

Find mode for the following distribution:

Marks	Frequency
10-19	19
20-29	21
30-39	27
40-49	21
50-59	22
60-69	20

106 Views

322.

Find the median from the following data.

Marks	No. of Students
Below 10	12
Below 20	32
Below 30	57
Below 40	80
Below 50	92
Below 60	116
Below 70	164
Below 80	200

175 Views

323.
Compute the median from the following distribution of monthly income (in Rs.) of a locality.

No. of families

Income

Below 100

50

100-200

50

200-300

555

300-400

100

400-500

3

500 and above

2

Solution not provided.

Ans. 250.45

84 Views

324.

The following table gives Intelligent Quotient (I.Q.) of 100 students:

I.Q.	No. of students
55-65	1
65-74	2
75-84	9
85-94	22
95-104	33
105-114	22
115-124	8
125-134	2
135-144	1

Find the median.

109 Views

325.

The following table gives heights (in cms) of 420 persons:

Heights (in cms)	No. of persons
160-162	15
163-165	118
166-168	142
169-171	127
172-174	18

Find the median height.

128 Views

326.

Find the median for the following distribution:

Marks	No. of students
Below 10	3
Below 20	10
Below 30	23
Below 40	55
Below 50	70
Below 60	75
Below 70	80

95 Views

327.

Find the median wage of the workers from the following frequency distribution table:

Wages (in Rs.)	No. of workers
More than 150	0
More than 140	10
More than 130	29
More than 120	60
More than 110	104
More than 100	134
More than 90	151
More than 80	160

369 Views

328.

Frequency table of the marks obtained by 50 students is given below :

Marks obtained	No. of students
0-10	3
10-20	f₁
20-30	20
30-40	10
40-50	5
50-60	f₂

Given that the median marks are 28.5, find the missing frequencies f₁ and f₂.

169 Views

329.

Find the missing frequencies in the following distribution. It is given that median of the distribution is 41 and the total number of observations is 82.

Class	Frequency
10-20	10
20-30	f₁
30-40	15
40-50	20
50-60	f₂
60-70	11

314 Views

330.

In the following frequency distribution, locate the median:

Monthly consumption of electricity	No. of consumers
65-85	4
85-105	5
105-125	13
125-145	20
145-165	14
165-185	7
185-205	4

Problems Based on Graphical Representation of Cumulative Frequency Distribuition

105 Views

No. of families	Income
Below 100	50
100-200	50
200-300	555
300-400	100
400-500	3
500 and above	2

Previous Year Papers

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Test Yourself

Short Answer Type

323. Compute the median from the following distribution of monthly income (in Rs.) of a locality. No. of families Income Below 100 50 100-200 50 200-300 555 300-400 100 400-500 3 500 and above 2

323.
Compute the median from the following distribution of monthly income (in Rs.) of a locality.

No. of families

Income

Below 100

50

100-200

50

200-300

555

300-400

100

400-500

3

500 and above

2