Codes:
I | II | III | IV | |
1 | C | D | A | B |
2 | D | C | A | B |
3 | C | D | B | A |
4 | A | B | C | D |
Answer: 3
Q. 74 Which one of the following equations represents a true mathematical characteristic of mean?
(1) ∑ (X-Mean)2 = minimum
(2) ∑ (X-Mean)2 = 0
(3) ∑ (X-Mean)2 = maximum
(4) ∑ (X-Mean)2 < ∑ (X-Mean)
Answer: 1
Q. 75 Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R) . Select your answer from the codes given below:
Assertion (A) : Area sampling by random numbers requires the area under study which should be gridded within two areas at right angle.
Reason (R) : The intersections of row and column of the area will give the sample locations of observation in the area.
Codes:
(1) Both (A) and (R) are true and (R) is the correct explanation of (A) .
(2) Both (A) and (R) are true, but (R) is not the correct explanation of (A) .
(3) (A) is true, but (R) is false.
(4) (A) is false, but (R) is true.
Answer: 4
How the oldest rock reported from aravali? ? ? pls explain
(-my...@ on April 21, 2023)
1 Answer
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- Examrace(contactus@examrace.com) on April 21, 2023
✍Examrace Team at Aug 20, 2021