1) The mean of a 5,6,9 ___
Ans:None of the above
2) 1 + 2 + 3 +.....+ n
Ans: n(n+1) /2
3) What is the median of the sample 5, 5, 11, 9, 8, 5, 8 ?
Ans:8
4) What is worst case of bubble sort?
Ans: None of the above
5) Mathematical induction principle consists of steps
Ans: All of the above
6) Mean of n objects is______
Ans: (Sum of n objects) / n
7) Sum of first n natural number is
Ans: n(n+1)/2
8) A null graph is having
Ans: Verticles only
9) Correlation coefficient lies between
Ans: All of the above
10) The highest frequency data is called as
Ans: Mode
11) Correlation coefficient is
Ans: Both A & B
12) Which of the following is the type of sorting?
Ans: All of the above
13) A tree with n vertices has ___edges.
Ans: n-1
14) Mode for the data: 2,2,2,5,5,5,9,9,9
Ans: None of the above
15) ____is the geometric mean of two regression coefficients
Ans: Correlation coefficient
16) The method of design encompassing the process of object oriented decomposition and a notation for depicting both logical and physical and as well as static and dynamic models of the system under design is known as:
Ans: Object- Oriented Design
17) Median can be measured graphically
Ans: Yes
18) A Tree is
Ans: Connected graph
19) Measure of central tendency (select correct option)
Ans: Mean deviation
20) If both the regression coefficients are negative then the correlation coefficient is
Ans: Negative
21) The following scores were obtained by eleven footballers in a goal-shoot competition: 5 3 6 8 7 8 3 11 6 3 2, The modal score was____
Ans: 3
22) A minimal spanning tree of a graph g is
Ans: All of the above
23) In the principle of mathematical induction, which of the following steps is mandatory?
Ans: Induction hypothesis
24) The middle value of an ordered array of numbers is the
Ans: Median
25) If graph G has n vertices and m edges then spanning tree of G has
Ans: n verticles and n-1 edges.
