MBA 816 Basic Mathematics and Statistics for Managers

Course Exam Oct/2016

Table of Content

1. If Kayode drives for 5 hours at a certain speed and then doubles that speed for the next 2 hours, if Kayode drove the car covering 75km altogether: (a)find the speed for the first 5 hours. (5Marks) (b) find the speed for the next 2 hours (5 Marks) (c) Find the mean deviation of 4,6,8,9,11,12, and 13. (15 Marks)
2a. Explain three non-probability sampling methods (6 Marks) b. What are the advantages of telephone interview (4 Marks) c. Discuss the disadvantages of personal interview as a method of data collection (5Marks)
3. The debits in international business transactions (current transfer in million) of United Kingdom from personal sector (x) and central government (y) for the quarters in the period of 1970 to 1972 is stated below:
4. The net weights of 5 tubers of yam selected from the harvest are 80, 85, 86, 85 and 84. What is the arithmetic mean of the sample observation? (5 Marks) b. The third term of a geometric progression is 20 and the seventh term is 320, what is the sum of it first nine terms? (10 Marks)
5. Write short notes on any six of the following (i) Entity (vi) Discrete Variable (ii) Random Variable (vii) Continuous Variable (iii) Variable (viii) Population (iv) Quantitative Variable (ix) Sample (v) Qualitative Variable (x) Random Variable (2.5Marks each)
6a. Find the sum of the first 28 terms of an arithmetic progression whose series is given as 3, 10 and 17 … n (5 Marks) b. In an arithmetic progression, the third term is 10 the 7th term of this progression is 34. Find the first term and the common difference (10 Marks)

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MBA 816 Basic Mathematics and Statistics for Managers

Table of Content

2a. Explain three non-probability sampling methods (6 Marks) b. What are the advantages of telephone interview (4 Marks) c. Discuss the disadvantages of personal interview as a method of data collection (5Marks)

3. The debits in international business transactions (current transfer in million) of United Kingdom from personal sector (x) and central government (y) for the quarters in the period of 1970 to 1972 is stated below:

4. The net weights of 5 tubers of yam selected from the harvest are 80, 85, 86, 85 and 84. What is the arithmetic mean of the sample observation? (5 Marks) b. The third term of a geometric progression is 20 and the seventh term is 320, what is the sum of it first nine terms? (10 Marks)

5. Write short notes on any six of the following (i) Entity (vi) Discrete Variable (ii) Random Variable (vii) Continuous Variable (iii) Variable (viii) Population (iv) Quantitative Variable (ix) Sample (v) Qualitative Variable (x) Random Variable (2.5Marks each)

6a. Find the sum of the first 28 terms of an arithmetic progression whose series is given as 3, 10 and 17 … n (5 Marks) b. In an arithmetic progression, the third term is 10 the 7th term of this progression is 34. Find the first term and the common difference (10 Marks)