# Statistics and methodology - Statistics and Methodology Multiple Choice Questions

101:

Match the following

List-I (Sub-modules of ERP)     List-II (Elements)

(A) Sales                                      1. Forecasting

(B) Production                              2. Planning

(C) Materials                                3. Purchase

(D) Finance                                  4. Cash analysis and Control

5. Payroll

 A. (A) (B) (C) (D) 1    2    3    4 B. (A) (B) (C) (D) 3    4    1    2 C. (A) (B) (C) (D) 3    1    2    4 D. (A) (B) (C) (D) 3    2    1    1 Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. Write your comments here:
102:

Given

Σdxdy = 2350, Σd2x = 8250, Σd2y = 724, then r will be

 A. + 0.92 B. +0.96 C. +0.36 D. +0.76 Answer Report Discuss Option: B Explanation : Hence the answer is (b) Click on Discuss to view users comments. Write your comments here:
103:

A random sample of 15 pairs of values of X and Y from a normal population gives a correlation coefficient of + 0.6. Is the correlation in the population significant?

 A. r is significant with -1 B. r is significant with +1 C. r is significant D. r is not significant Answer Report Discuss Option: C Explanation : N = 15, r = 0.6 Z = 1.1513 log 1 + r/1 - r = 1.1513 log 1 + 0.6/1 - 0.6 = 1.1513 log 4 = 1.1513 x 0.6021 = 0.6932 S.E.2 = 1/√(N - 3) = 1√(15 - 3) = 1√12 = 1/3.464 = 0.29 Z/(S.E.)2 = 0.6932/0.29 =2.39 > 1.96 Hence 'r' is significant at 5% level of significance. The answer is (c). Click on Discuss to view users comments. Write your comments here:
104:

What is the chance of drawing a queen in a draw from a pack of 52 cards?

 A. 1/9 B. 1/13 C. 1/14 D. 1/12 Answer Report Discuss Option: B Explanation : Total number of cases that can happen = 52 No. of favourable cases = No. of queens in a pack or        52= 4 The probability (P) will be - P = 4/52 = 13 Hence the answer is (b). Click on Discuss to view users comments. Write your comments here:
105:

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?

 A. 0.1 B. 3.4 C. 0.2 D. 0.36 Answer Report Discuss Option: A Explanation : Hence the answer is (a). Click on Discuss to view users comments. Write your comments here:

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