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Measures Of Central Tendency
Which average would be suitable in the following cases:
(i) Average size of readymade garments.
(ii) Average intelligence of students in a class.
(iii) Average production in a factory per shift.
(iv) Average wages in an industrial concern.
(v) When the sum of absolute deviations from average is least.
(vi) When quantities of the variable are in ratios.
(vii) In case of open ended frequency distribution.Classroom Activity. Try yourself with the help of your teacher.
Some More Questions From Measures of Central Tendency Chapter
The following series relates to the daily income of workers employed in a firm. Compute the (a) highest income of lowest 50% workers, (6) minimum income earned by the top 25% and (c) maximum income earned by lowest 25% workers.
Daily Income (in Rs.)
Number of Workers
10-14
15-19
20-24
25-29
30-34
35-39
5
10
15
20
10
5
Daily Income (in Rs.)
Number of Workers
10-14
15-19
20-24
25-29
30-34
35-39
5
10
15
20
10
5
The following table gives production yield in kg. per hectare of wheat of 150 arms in a village. Calculate the mean, median and mode production yield.
Production yield (kg. per hectare)
50-53
53-56
56-59
59-62
62-65
65-68
68-71
71-74
74-77
Number of farms
3
8
14
30
36
28
16
10
5
Production yield (kg. per hectare)
50-53
53-56
56-59
59-62
62-65
65-68
68-71
71-74
74-77
Number of farms
3
8
14
30
36
28
16
10
5
The size of land holdings of 380 families in a village is given below. Find the median size of land holdings.
Size of Land Holdings (in acres)
Number of families
less than 100
100-200
200-300
300-400
400 and above
40
89
148
64
39
Size of Land Holdings (in acres)
Number of families
less than 100
100-200
200-300
300-400
400 and above
40
89
148
64
39
What do you mean by 'Average'?
Pocket expenditures of 6 students are (Rs.) 6,12,18,24,30 and 36 respectively. Find out arithmetic mean.
Name various kinds of statistical averages?
Give formula of weighted averages.
Give formula of calculating arithmetic average of a continuous series.
What is arithmetic mean?
Define median.
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Mock Test Series
Mock Test Series