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3 years ago

Colour statement is used for setting .................... and .................. colors

Computers and Technology

1 answer:

Bogdan [553]3 years ago

4 0

Answer:

The answer to this question is given below in the explanation section.

Explanation:

The correct answer to this question is C. i,e, foreground, and background.

First, we need to know what is a color statement.

The purpose of the color statement is to select display colors. It is used to select the foreground and background colors of the display.

So, the correct answer is :

Colour statement is used for setting foreground and background colors.

In general, it allows you to select foreground and background colors for a display. You can use different codes to display and see the effect of the color statement.

While other options are not correct, because the color statement used to select foreground and background color for the display. It does not use for setting screen and paint color in it. It also does not use for drawing lines and circles etc.

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A derived class is a class that inherits data members and functions from a ____ class.

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3 years ago

Fifty-three percent of U.S households have a personal computer. In a random sample of 250 households, what is the probability th

aleksley [76]

Answer:

The correct Answer is 0.0571

Explanation:

53% of U.S. households have a PCs.

So, P(Having personal computer) = p = 0.53

Sample size(n) = 250

np(1-p) = 250 * 0.53 * (1 - 0.53) = 62.275 > 10

So, we can just estimate binomial distribution to normal distribution

Mean of proportion(p) = 0.53

Standard error of proportion(SE) = $\sqrt{\frac{p(1-p)}{n} }$ = $\sqrt{\frac{0.53(1-0.53)}{250} }$ = 0.0316

For x = 120, sample proportion(p) = $\frac{x}{n}$ = $\frac{120}{250}$ = 0.48

So, likelihood that fewer than 120 have a PC

= P(x < 120)

= P( p^ < 0.48 )

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3 years ago

Write a program that asks the user to input an integer named numDoubles. Create a dynamic array that can store numDoubles double

Hitman42 [59]

Answer:

Answered in C++

#include <iostream>

using namespace std;

int main() {

int size;

cout<<"Length of array: ";

cin >> size;

double *numDoubles = new double[size];

double sum =0;

cout<<"Array Elements: ";

for(int i=0;i<size;i++){

cin>>numDoubles[i];

sum += numDoubles[i];

}

delete [] numDoubles;

cout<<"Average: "<<sum/size;

return 0;

}

Explanation:

This line declares the size (or length) of the array

int size;

This line prompts the user for the array length

cout<<"Length of array: ";

This gets the input from the user

cin >> size;

This dynamically declares the array as of double datatype

double *numDoubles = new double[size];

This declares and initializes sum to 0

double sum =0;

This prompts the user for elements of the array

cout<<"Array Elements: ";

The following iteration gets input from the user and also calculates the sum of the array elements

for(int i=0;i<size;i++){

cin>>numDoubles[i];

sum += numDoubles[i];

}

This deletes the array

delete [] myarray;

This calculates and prints the average of the array

cout<<"Average: "<<sum/size;

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3 years ago

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2 years ago

Colour statement is used for setting .................... and .................. colors​

Colour statement is used for setting .................... and .................. colors