Course: Decision Science
December 2021 Examination
Kindly check below
- Calculate the probabilities for the following statements as per the given scenario and draw the probability tree diagram also (Note: This diagram can be prepared in MS-Paint or manually).
A study undertaken by the Rajan Supervisor of Elections in 2002 revealed that 44% of registered voters are ‘Dharwadi Yuth’, 37% are Rajmoti, and 19% are others. If two registered voters are selected at random, what is the probability that both of them have the same party affiliation? (10 Marks)
- Calculate the correlation between pairs (recommended below) of the following variables and write interpretation for each correlation coefficient. (Note: For the following pairs, correlation can be calculated using EXCEL.) (10 Marks) Recommended Pairs:
- Correlation between ‘number of female migrants for work/ employment’ v/s ‘Number of male migrants for work/ employment
- Correlation between ‘number of female migrants _ Education’ v/s ‘Number of male migrants _Education’
- Correlation between ‘number of female migrants _ Business’ v/s ‘Number of male migrants _ Business’
- Correlation between ‘number of female migrants _ Marriage’ v/s ‘Number of male
migrants _marriage’
Table: State to state migration with reasons of migration as per census 2011.
Work/empl oyment | Busi ness | Educa tion | Marr iage | Work/empl oyment | Busi ness | Educa tion | Marr iage | |
State
_name |
Females | Fem ales | Femal es | Fema les | Male | Male | Male | Male |
JAMMU &
KASHMIR (01) |
4,911 |
495 |
1,085 |
43,13 0 |
22,716 |
1,985 |
1,762 |
1,372 |
HIMACHA L PRADESH (02) |
13,938 |
493 |
3,200 |
1,08,1 53 |
95,255 |
3,188 |
5,647 |
1,932 |
Work/empl oyment | Busi ness | Educa tion | Marr iage | Work/empl oyment | Busi ness | Educa tion | Marr iage | |
State
_name |
Females | Fem ales | Femal es | Fema les | Male | Male | Male | Male |
PUNJAB | 72,829 |
5,468 |
5,757 |
5,16,724 |
10,228 |
|||
(03) | 6,92,4 | 11,29 | 15,13 | |||||
59 | 5 | 9 | ||||||
CHANDIG |
14,435 |
787 |
8,725 |
1,06,7 |
1,85,856 |
7,463 |
13,769 |
1,290 |
ARH (04) | 74 | |||||||
UTTARAK |
25,691 |
1,733 |
7,717 |
3,64,6 |
2,65,536 |
6,530 |
19,304 |
4,913 |
HAND (05) | 98 | |||||||
HARYANA |
1,05,741 |
6,670 |
8,047 |
12,84, |
6,77,595 |
14,66 |
12,805 |
23,72 |
(06) | 022 | 5 | 2 | |||||
NCT OF | 1,19,575 |
7,610 |
23,224 |
18,14,435 |
73,391 |
|||
DELHI (07) | 12,01, | 39,05 | 15,65 | |||||
945 | 1 | 4 | ||||||
RAJASTH |
49,392 |
4,192 |
13,275 |
12,88, |
3,29,428 |
9,374 |
18,313 |
13,81 |
AN (08) | 934 | 0 | ||||||
UTTAR | 91,265 |
12,649 |
4,35,014 |
36,835 |
||||
PRADESH | 14,57 | 20,52, | 19,47 | 30,90 | ||||
(09) | 8 | 928 | 3 | 7 | ||||
BIHAR | 12,127 |
2,371 |
2,105 |
45,028 |
2,959 |
3,258 |
||
(10) | 7,99,3 | 15,27 | ||||||
73 | 5 | |||||||
SIKKIM | 2,616 |
257 |
698 |
16,926 |
2,617 |
925 |
331 |
|
(11) | 14,76 | |||||||
4 | ||||||||
ARUNACH |
8,260 |
1,104 |
599 |
18,96 |
41,110 |
8,613 |
928 |
319 |
AL | 2 | |||||||
PRADESH | ||||||||
(12) | ||||||||
NAGALAN |
4,420 |
921 |
1,103 |
15,30 |
28,567 |
9,993 |
1,783 |
471 |
D (13) | 7 | |||||||
MANIPUR | 419 |
267 |
321 |
5,378 |
1,804 |
1,801 |
520 |
185 |
(14) | ||||||||
MIZORAM |
1,795 |
209 |
361 |
2,522 |
9,918 |
1,009 |
446 |
424 |
(15) |
Work/empl oyment | Busi ness | Educa tion | Marr iage | Work/empl oyment | Busi ness | Educa tion | Marr iage | |
State
_name |
Females | Fem ales | Femal es | Fema les | Male | Male | Male | Male |
TRIPURA | 6,795 |
143 |
149 |
15,891 |
955 |
283 |
578 |
|
(16) | 17,50 | |||||||
2 | ||||||||
MEGHALA |
2,726 |
403 |
1,878 |
25,46 |
17,727 |
4,407 |
3,025 |
4,418 |
YA (17) | 9 | |||||||
ASSAM | 6,642 |
2,378 |
1,834 |
74,921 |
3,074 |
5,495 |
||
(18) | 1,56,1 | 49,69 | ||||||
84 | 7 | |||||||
WEST | 36,504 |
7,436 |
5,567 |
4,32,269 |
15,470 |
|||
BENGAL | 7,49,9 | 76,03 | 23,67 | |||||
(19) | 96 | 6 | 6 | |||||
JHARKHA |
31,154 |
4,061 |
5,872 |
9,84,4 |
3,83,816 |
16,09 |
15,672 |
25,10 |
ND (20) | 64 | 4 | 1 | |||||
ODISHA | 11,709 |
3,735 |
4,935 |
1,11,038 |
10,369 |
9,282 |
||
(21) | 3,27,4 | 40,91 | ||||||
76 | 7 | |||||||
CHHATTIS |
29,610 |
1,843 |
3,160 |
4,01,9 |
2,69,311 |
11,21 |
7,196 |
11,43 |
GARH (22) | 47 | 3 | 6 | |||||
MADHYA | 52,026 |
7,859 |
9,221 |
3,86,776 |
22,575 |
|||
PRADESH | 12,87, | 15,60 | 27,46 | |||||
(23) | 527 | 9 | 0 | |||||
GUJARAT | 75,552 |
5,722 |
10,46,192 |
12,864 |
||||
(24) | 18,86 | 6,28,4 | 1,23, | 17,92 | ||||
5 | 73 | 091 | 8 | |||||
DAMAN | 2,933 |
159 |
220 |
67,115 |
1,653 |
306 |
335 |
|
& DIU (25) | 12,30 | |||||||
9 | ||||||||
DADRA & | 2,588 |
220 |
181 |
54,455 |
3,247 |
451 |
957 |
|
NAGAR | 19,95 | |||||||
HAVELI | 0 | |||||||
(26) | ||||||||
MAHARAS |
2,49,129 |
30,50 |
33,678 |
18,31, |
25,37,638 |
1,01, |
87,034 |
69,11 |
HTRA (27) | 9 | 160 | 924 | 1 | ||||
ANDHRA | 49,670 |
7,898 |
10,847 |
2,31,471 |
13,104 |
|||
PRADESH | 5,33,5 | 37,07 | 24,79 | |||||
(28) | 44 | 9 | 0 |
Work/empl oyment | Busi ness | Educa tion | Marr iage | Work/empl oyment | Busi ness | Educa tion | Marr iage | |
State
_name |
Females | Fem ales | Femal es | Fema les | Male | Male | Male | Male |
KARNATA |
1,24,179 |
12,95 |
38,944 |
8,40,4 |
6,57,819 |
61,44 |
63,643 |
31,55 |
KA (29) | 3 | 42 | 4 | 7 | ||||
GOA (30) | 8,838 |
1,149 |
953 |
45,85 |
64,852 |
6,212 |
1,716 |
1,661 |
4 | ||||||||
LAKSHAD |
59 |
7 |
234 |
118 |
2,200 |
19 |
340 |
29 |
WEEP (31) | ||||||||
KERALA | 24,874 |
1,219 |
3,195 |
1,29,875 |
6,970 |
6,758 |
||
(32) | 1,02,2 | 19,70 | ||||||
55 | 9 | |||||||
TAMIL | 43,823 |
3,271 |
20,435 |
2,19,262 |
38,727 |
|||
NADU (33) | 3,73,2 | 14,18 | 21,73 | |||||
92 | 1 | 2 | ||||||
PUDUCHE |
7,389 |
925 |
2,014 |
1,03,4 |
43,572 |
2,566 |
2,908 |
16,10 |
RRY (34) | 34 | 7 | ||||||
ANDAMA |
1,419 |
107 |
226 |
16,73 |
26,304 |
1,915 |
455 |
340 |
N & | 1 | |||||||
NICOBAR | ||||||||
ISLANDS | ||||||||
(35) |
Source: D3 Table, Census 2011.
3.a. From the following uniformly distributed data scene calculate the probability w.r.t statement.
The weekly output of a steel mill is a uniformly distributed random variable that lies between 110 and 175 metric tons.
- Compute the probability that the steel mill will produce more than 150 metric tons next week.
- Determine the probability that the steel mill will produce between 120 and 160 metric tons
3.b. Draw the histogram separately (for Person, male and female) and write the interpretation.
The following table shows the age group-wise total number of Migrants as per census 2011.
Age Group | Total number of Migrant persons | Total number of Migrant
Males |
Total number of Migrant
Females |
0-4 | 1,89,62,713 | 98,34,738 | 91,27,975 |
5-9 | 2,09,17,565 | 1,09,59,506 | 99,58,059 |
10-14 | 2,38,76,335 | 1,24,25,108 | 1,14,51,227 |
15-19 | 2,92,02,399 | 1,26,83,733 | 1,65,18,666 |
20-24 | 4,68,55,749 | 1,31,97,283 | 3,36,58,466 |
25-29 | 5,05,67,231 | 1,30,45,214 | 3,75,22,017 |
30-34 | 4,64,20,105 | 1,21,34,009 | 3,42,86,096 |
35-39 | 4,51,14,917 | 1,20,60,030 | 3,30,54,887 |
40-44 | 3,81,61,379 | 1,09,00,143 | 2,72,61,236 |
45-49 | 3,31,51,742 | 97,04,026 | 2,34,47,716 |
50-54 | 2,57,83,138 | 79,40,152 | 1,78,42,986 |
55-59 | 2,13,54,664 | 61,61,754 | 1,51,92,910 |
60-64 | 1,97,49,108 | 54,01,736 | 1,43,47,372 |
65-69 | 1,38,28,278 | 36,87,082 | 1,01,41,196 |
70-74 | 96,96,149 | 26,62,421 | 70,33,728 |
75-79 | 48,34,573 | 13,41,572 | 34,93,001 |
80+ | 57,14,991 | 14,61,296 | 42,53,695 |
Source: D4 table, census 2011
Note: Here, Students may use EXCEL for the preparation of the Histogram. (5 Marks)
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