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shutvik [7]
3 years ago
10

System software includes all of the following except

Computers and Technology
1 answer:
Amanda [17]3 years ago
4 0

Answer:

System software includes all of the following except <u>Browsers</u>.

Explanation:

I just know

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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 )

= P(z < \frac{0.48-0.53}{0.0316}​)      (z=\frac{p^-p}{SE}​)  

= P(z < -1.58)

= 0.0571      ( From normal table )

6 0
3 years ago
. Create an abstract Dollar class with two integer attributes, both of which are non-public (Python programmers - it is understo
aksik [14]

Answer:

Explanation:

The following code is written in Java. It creates the abstract dollar class that has two instance variables for the dollars and the coins that are passed as arguments. The test output can be seen in the picture attached below.

class Dollar {

   int dollars;

   double coin;

   private Dollar(int dollar, int coin) {

       this.dollars = dollar;

       this.coin = Double.valueOf(coin) / 100;

   }

   

}

4 0
3 years ago
FILL IN THE BLANK.
Veseljchak [2.6K]

Answer:

It is measured in megahertz (MHz) and gigahertz (GHz).

Hope this helps.

3 0
3 years ago
Introduction to Programming Workbook
Lapatulllka [165]
Haije jiôes 1w mòé si aimx
3 0
3 years ago
The below program uses an array salaryBase to hold the cutoffs for each salary level and a parallel array taxBase that has the c
marissa [1.9K]

Answer:

Check the explanation

Explanation:

1. After running the program for annual salary 40000 and 50000 and then enter 0

a) For annual salaries of 40000

taxRate will be . 20

taxToPay will be 40000 x .20 = 8000

b)For annual salaries of 50000

taxRate will be . 30

taxToPay will be 50000 x .30 = 15000

2. Modify the program to use two parallel arrays named annualSalaries and taxesToPay

a) For implementing array of anuualSalaries that take input from user, refer following given code:

Scanner s=new Scanner(System.in);

   System.out.println("enter number of anuualSalaries");

   int n=s.nextInt();

   int anuualSalaries[]=new int[n];

   System.out.println("enter anuualSalaries");

   for(int i=0;i<n;i++){//for reading array

       anuualSalaries[i]=s.nextInt();

b) For implementing array of taxestoPay refer following code

int taxestoPay[] = new int[anuualSalaries.length];

       for (int i = 0; i < taxestoPay.length; i++) {

           taxestoPay[i] = "enter the result value of tax to pay"

       }

4. For two dimensional array of salariesAndTaxes refer following given code

int[][] salariesAndTaxes = new int[2][];

salariesAndTaxes[0] = new int[10];

salariesAndTaxes[1] = new int[10];

5 0
3 years ago
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