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balandron [24]
3 years ago
5

About ___% of children score within one standard deviation above or below the national average in intelligence.

Computers and Technology
1 answer:
goldfiish [28.3K]3 years ago
4 0
The question is not influenced by the fact that it's about intelligence -  standard deviation is a way of describing data and it's the same for all kinds of data.

So in general, one  standard deviation away from the mean in both directions encompases around 66% of the cases - so here it would be 66% of children.

Additionally, 95% of all children should lie withing two standard deviations - so two standard deviations below or above the average.
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Write the definition of a function named newbie that receives no parameters and returns true the first time it is invoked (when
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Answer:

The function definition to this question can be described as follows:

bool newbie() //defining a bool method newbie

{

static bool y = true ; // defining a static bool variable y and assign value true

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Explanation:

The program to this question can be described as follows:

Program:

#include <iostream> //defining header file

using namespace std;

bool newbie() //defining a bool method newbie

{

static bool y = true ; // defining a static bool variable y and assign value true

bool t1=y; //defining bool variable t1 and assign value of variable y

y=false; // assigning value in variable y

return t1; // return value of variable t1

}

int main() //defining main method

{

int s,s1; //defining integer variable s,and s1

s=newbie(); // variable s that call method

cout<<s<<endl; //print value

s1=newbie();//variable s that call method

cout<<s1;  //print value

return 0;

}

Output:

1

0

Description:

The description of the above function can be described as follows:

  • In the above method definition a boolean method "newbie" is declared, which can't accept any parameters, inside the method, two boolean variable "y and t1" is declared.
  • In this variable, variable y is a static boolean variable, that assigns a true value, and in t1 variable, we hold static variable value.  
  • In the next step, the "y" variable assigns a value, that is false and returns variable t1 value.
  • In the next step, the main method is declared, inside these two integer variable s, s1 is declared, that calls a method, and prints it value in the first time, it will print 1, that means the false and second time it will print 0, that means false.
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whats the question  .............


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