1781: In a factory, quality assurance test is conducted on various samples for a specific characteristic value of the product. The values and the number of samples are as given in the following table :
Characteristic value, X No. of Samples
10 3
11 7
12 10
13 15
14 28
15 33
16 24
17 11
18 10
19 6
20 3
Consider the following statements based on the table :
I. The probability that X ≤ 15 is 0.64.
II. The probability that 13 < X ≤ 17 is greater than 0.64.
III. The probability that X = 15 is less than 0.22.
Which of the above statements is/are not true?
(a) I alone
(b) I and II
(c) II and III
(d) I, II and III
1782: The largest reserve of Sal forests is found in:
(a) Nilgiri hills
(b) Dehradun valley
(c) The Aravallis
(d) Eastern Peninsula
1783: Alauddin Khilji maintained control on price during his reign because:
(a) He wanted to keep large army at lower expenses.
(b) He had mercy with poor people.
(c) He wanted to gain popularity.
(d) All of the above
1784: Who prepares topographical maps of India?
(a) Survey of India
(b) Ministry of Home Affairs
(c) Geological Survey of India
(d) Archaeological Survey of India
1785: The Mausoleum of Sher Shah is at:
(a) Rohtas
(b) Agra
(c) Sasaram
(d) Lahore