Monthly income (in Rs.) | Number of | |||
AC/households | ||||
0 | 1 | 2 | Above 2 | |
<10000 | 20 | 80 | 10 | 0 |
10000-14999 | 10 | 240 | 60 | 0 |
15000-19999 | 0 | 380 | 120 | 30 |
20000-24999 | 0 | 520 | 370 | 80 |
25000 and above | 0 | 1100 | 760 | 220 |
A)
(a) (b) (c) \[\frac{1}{8}\] \[\frac{11}{40}\] \[\frac{1}{200}\]
B)
(a) (b) (c) \[\frac{3}{80}\] \[\frac{17}{40}\] \[\frac{3}{400}\]
C)
(a) (b) (c) \[\frac{1}{8}\] \[\frac{17}{40}\] \[\frac{1}{200}\]
D)
(a) (b) (c) \[\frac{3}{80}\] \[\frac{11}{40}\] \[\frac{3}{400}\]
Correct Answer: D
Solution :
Total number of households = 4000 Total number of possible outcomes = 4000 (a) Favourable outcomes = 120 + 30 = 150 Require probability (b) Favourable outcomes = 1100 Required probability (c) Number of households not having any A.C. have monthly income Rs. 10,000 and in the range Rs. Favourable outcomes = 20 +10 = 30 Required probabilityYou need to login to perform this action.
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