# BIT 1110 MATHEMATICS FOR SCIENCES DISTANCE LEARNING KCA Past Paper

UNIVERSITY EXAMINATIONS: 2014/2015
ORDINARY EXAMINATION FOR THE BACHELOR OF SCIENCE
IN INFORMATION TECHNOLOGY
BIT 1110 MATHEMATICS FOR SCIENCES DISTANCE LEARNING
DATE: APRIL, 2015 TIME: 2 HOURS
INSTRUCTIONS: Answer Question ONE and any other TWO

QUESTION ONE [30MARKS]
(a) Donna’s parents have established a trust fund for their daughter. On her21st birthday,
Donna receives a payment of Sh.10,000. On each successive birthday, she receives a
payment that is 80% of the previous payment. Write a sequence showing Donna’s
payments for the first 4 years, hence find the total amount of Donna’s first 25 payments. [4 marks]
(b) As an employee, would you prefer being given a Sh.2400 raise each year for 5 years
or a Sh.400 raise each quarter for 5 years?[3 marks]

(a) Differentiate the following terms as used in statistics
(i) Quantitative data and qualitative data. [3 marks]
(ii) Descriptive statistics and inferential statistics. [3 marks]
(iii) Sample inquiry and census inquiry. [2
marks]
(b) Highlight three advantages of the median as a measure of central tendency. [3 marks]
(c) State and briefly explain any three methods of collecting primary data. [9 marks]
QUESTION THREE [20 MARKS]
(a) Given that log102 = 0.3010 and log103 = 0.4771, without using tables or logarithm

QUESTION FOUR [20 MARKS]

(c) How many even numbers greater than 6000 can be formed from the digits 1, 5, 6
and 8, if each digit may only be used once? [3 marks]
(d) The fourth term of an A.P. is 18, and the common difference is -5. Find the first
term and the sum of the first sixteen terms. [4 marks]
(e) How many arrangements can be made of the letters in THIRIETH? [3 marks]
QUESTION FIVE [20 MARKS]

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