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# Statistics and methodology - Statistics and Methodology Multiple Choice Questions

111:

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)

 A. (A) (B) (C) (D) 2    1    2    3 B. (A) (B) (C) (D) 1    2    2    3 C. (A) (B) (C) (D) 3    1    2    2 D. (A) (B) (C) (D) 1    2    3    2 Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. Write your comments here:
112:

Given

N = 15, X¯ = 25, Y¯ = 18, Σdx2 = 136, Σdy2 = 138, Σdxdy = 122.

There correlation will be

 A. +0.89 B. -0.89 C. +0.39 D. +0.072 Answer Report Discuss Option: A Explanation :     =  122/136.935 =+0.89 Hence the answer is (a) Click on Discuss to view users comments. Write your comments here:
113:

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 significant difference between the two sample coefficients?

 A. 5% level is not proper B. Difference is not significant C. Difference is significant D. 95% level is significant Answer Report Discuss Option: B Explanation : 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 The difference is not significant at 5% level of significant. Hence the answers (b).   Click on Discuss to view users comments. Write your comments here:
114:

What is the probability of selecting a king from a Pinochle desk?

 A. 1/6 B. 1/4 C. 1/9 D. 1/54 Answer Report Discuss Option: A Explanation : A Pinochle deck consists of 2 = Aces 2 = Kings 2 = Queens 2 = Jacks 2 = Tens and 2 = Nines of each suit There are no card of lower than value. Total number of cases. = Total no. of cards (48). Hence the answer is (a). Click on Discuss to view users comments. Write your comments here:
115:

The average number of customers per minute arriving at a super bazaar is 2. Using the Poisson distribution, find the probability that during one particular minute exactly three customers will arrive

 A. 0.36 B. 0.180 C. 0.120 D. 0.130 Answer Report Discuss Option: B Explanation : Hence the answer is (b). Click on Discuss to view users comments. Write your comments here:

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