546: Which one of the following statements regarding Asokan stone pillars is incorrect ?
(a) These are highly polished
(b) These are monolithic
(c) The shaft of pillars is tapering in shape
(d) These are parts of architectural structures
547: Chemical composition of pearl is:
(a) Calcium carbonate
(b) Calcium carbonate and magnesium carbonate
(c) Calcium sulphate
(d) Calcium chloride
548: In which country Bandung, where the Conference of African and Asian nations was held which led to establishing Non Aligned Movement (NAM) situated?
(a) Philippines
(b) Indonesia
(c) Egypt
(d) Thailand
549: The first among the following to establish trade links with India were:
(a) Dutch
(b) French
(c) Portuguese
(d) English
550: 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