# BIT 1110  MATHEMATICS FOR SCIENCE- (DISTANCE LEARNING) KCA Past Paper

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

QUESTION ONE [30MARKS]
(a) What is the smallest number of terms of the geometrical progression, 8 + 24 + 72 +
…, that will give a total greater than 6 000 000? [4 marks]
(b) The first term of an Arithmetic Progression is 17 and the third term is 11. Find the
sum of the first seven terms.

QUESTION TWO [20 MARKS]

(c) How many even numbers greater than 4000 can be formed from the digits 1, 4, 6 and
8, if each digit may only be used once? [3 marks]
(d) The sum of the first three terms of an arithmetical progression is 3, and the sum of the
first five terms is 20. Find the first five terms of the progression. [4 marks]
(e) In how many ways can the letters of the word NOTATION be arranged? [3 marks]
QUESTION THREE [20 MARKS]

QUESTION FOUR [20 MARKS]
(a) Differentiate between primary and secondary data. [4 marks]
(b) Briefly explain the source of internal data in an organization. [3 marks]
(c) List any four sources of secondary data. [3 marks]
(d) Differentiate between the following terms as used in statistics.
(i) Continuous and discrete data. [2 marks]
(ii) Primary and secondary data. [2 marks]
(iii) Quantitative and qualitative data. [2 marks]
(e) Briefly explain the steps you would take in selecting a simple random sample.
[4 marks]
QUESTION FIVE [20 MARKS]

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