NIELIT STQC 2021 Quiz-71

12 cards numbered 1 to 12 are placed in a box, mixed up thoroughly and then a card are drawn at random from the box. If it is known that the number on the drawn card is more than 3, find the probability that it is an even number.

A continuous random variable X has a probability density function f(x) = e^–x, 0 < x < ∞. Then P{X > 1} is

There are 10 points in a plane out of these 6 are collinear. The numbers of triangles formed by joining these points are,

The number of tokens in the following C statement is

int i = 10;

float b = 12.0;

printf("x = %i, y = %f", i++, ++b);

In a ripple counter using edge-triggered JK flip-flops, the pulse input is applied to

Which of the following methods is the most effective for picking the pivot element?

Given relations R(w,x) and S(y,z),the result of SELECT DISTINCT w,x from R,S is guaranteed to be same as R, provided.

The post order traversal of a binary search tree is-
7, 12, 11, 15, 14, 13, 20, 22, 25, 24, 21, 17
Then the preorder traversal of this tree is:

Which level of RAID refers to disk mirroring with block striping?

Which of the following sorting algorithm does not use recursion?