What is the formula to calculate the standard deviation?

• Standard deviation = √(Σ(xi - μ)² / N)

• Standard deviation = √(Σ(xi - μ) / N)

• Standard deviation = Σ(xi - μ)² * N

• Standard deviation = Σ(xi - μ) / N

What do the following declaration signify?

int (*ptr)[30];

• ptr is a pointer to an array of 30 integer pointers.

• ptr is a array of 30 integer function pointer.

• ptr is a array of 30 integer pointers.

• ptr is a array 30 pointers.

Choose the correct meaning of proverb/idiom

To have an axe to grind

• 
  A private end to serve

• To fail to arouse interest

• To have no result

• To work for both sides

How many times the while loop will get executed if a short int is 2 byte wide?

#include<stdio.h>

int main(){

int j=4;

while(j <= 255){

printf(" %d\n", j);

j++;

}

return 0;

}

• Infinite times

• 255 times

• 256 times

• 252 times

Which of the following languages is primarily used for defining the structure and content of web pages?

• HTML

• CSS

• JAVASCRIPT

• PHP

Predict the Ouput

#include <stdio.h>

int main(){

float c = 40.235679;

printf ("Temperature is %.5f",c );

return 0;

}

• error

• 40

• 40.23568

• 40.235679

What is the purpose of the do-while loop in C?

• It iterates as long as a condition is true.

• It ensures the loop body is executed at least once.

• It is used for infinite loops.

• It repeats a block of code a specific number of times.

which of the following is not a string function?

• strcpy()

• strcat()

• strcopy()

• strcmp()

Parts : Strap :: Wolf :

• Flow

• Animal

• Wood

• Fox

Operator "&&" is a________?

• arithmetic operator

• assignment operator

• logical operator

• bitwise operator