# Statistics and methodology - Statistics and Methodology Multiple Choice Questions

31:

The mean wage of a certain group of workers is 500 rupees and a is 100. Find what percentage of workers get above 375 rupees

 A. 39.12% B. 89.44% C. 80.43% D. 16.12% Answer Report Discuss Option: B Explanation : Z = (X - μ)/σ = (375 – 500)/100 = 1.25 The area according to table is 0.3944. The total area will be   = 0.5 + 0.3944 = 0.8944 or            0.8944 x 100 = 89.44% Hence the answer is (b). Click on Discuss to view users comments. Write your comments here:
32:

A trader decides that he has surplus stocks of 9 different kinds of goods. He decides to make-up gift parcels, each to contain four different goods, which he will sell at a special price. How many different kinds of parcel may he produce?

 A. 119 B. 126 C. 112 D. 130 Answer Report Discuss Option: B Explanation : Hence the answer is (b). Click on Discuss to view users comments. Write your comments here:
33:

The structured systems analysis develops _______ of the system

 A. Graphical model B. Logical model C. Conceptual model D. Air of the above Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here:
34:

R1∙23 is

 A. Sample correlation B. Multiple correlation C. Regression analysis D. Partial correlation Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
35:

Given

 a b (a+b) c d (c+d) (a+c) (b+d) N

The above table is used for

 A. Computing ϰ2 B. Computing regression analysis C. Computing correlation D. Computing average Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. Write your comments here: