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Statistics And Methodology MCQ - Statistics And Methodology Section 1

46 A company makes electric toys. The probability that an electric toy is defective is 0.01. What is the probability that a shipment of 300 toys will contain exactly 5 defectives?

statistics and methodology mcq

47 If the stock level ≤ then recorder level, then draw a purchase order of the quantity equal to the

48 Match the following

List-I (Computer-based information system)	List-II (year)
(A) Management Information systems (MIS)	1. 1971
(B) Decision Support System (DSS)	2. 1964
(C) Office Automation (OA)	3. 1990
(D) Artificial Intelligence (AI)

CODES

	A	B	C	D
I	2	1	2	3
II	1	2	2	3
III	3	1	2	2
IV	1	2	3	2

49 Given N = 15, X¯ = 25, Y¯ = 18, Σdx2 = 136, Σdy2 = 138, Σdxdy = 122. Their correlation will be

statistics and methodology mcq

= 122/136.935 =+0.89

50 In a sample having 23 pairs of observations, the correlation coefficient is 0.52 and in another sample having 28 observations, the correlation coefficient is 0.71. Is there a significant difference between the two sample coefficients?

N₁ = 23, r₁ = 0.52

N₂ = 28, r₂ = 0.71

Z₁ for r₁ = 0.52 (By reference to table)

= 0.58

Z₂ for r₂ = 0.71 (By reference to table)

= 0.89

statistics and methodology mcq

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"Two or more events are called mutually exclusive If the occurrence of any one of them excludes the occurrence of the other." This statement is given by

A. Murray Spiegel
B. Boddington
C. M. S. Roy
D. R. M. Morse

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