A signed integer is the best option. In some systems, the value -1 can indicate that no combobox item is selected, so you need to allow for negative values.
Answer:
Margin of Error=M.E= ± 0.0113
Explanation:
Margin of Error= M.E= ?
Probability that watched network news programs = p = 0.4
α= 95%
Margin of Error =M.E= zₐ/₂√p(1-p)/n
Margin of Error=M.E= ±1.96 √0.4(1-0.4)/7200
Margin of Error=M. E = ±1.96√0.24/7200
Margin of Error=M. E- ±1.96* 0.005773
Margin of Error=M.E= ±0.0113
The Margin of Error is the estimate of how much error is possible as a result of random sampling.
Answer:
The first computer with a GUI were linux, microsoft and apple.
Explanation:
I think this is right. Hope it helped <3
Flowcharts are used as a prototype of an actual program.
First, I will write out the algorithm; which will be used as an explanation of the flowchart (see attachment for flowchart)
The algorithm is as follows;
1. Start
2. Get input for cost of a meal and cost of a drink;
3. Calculate the total cost for a meal and two drinks
4. Multiply the total cost of a meal and two drinks by 7, to get the weekly cost
5. Display the weekly cost
6. Stop
At the end of the algorithm/flowchart, the weekly cost is calculated and printed.
See attachment for flowchart
Read more about algorithms and flowcharts at:
brainly.com/question/18088572
Answer:
Following are the program in the Java Programming Language.
//define function
public static boolean checkPalindrome(String str){
//set integer variable to 0
int a = 0;
//set integer variable to store the length of the string
int n = str.length() - 1;
//set the while loop to check the variable a is less than the variable n
while(a<n)
{
//check the string character is not in the variable n
if(str.charAt(a)!= str.charAt(n))
//then, return false
return false;
//the variable a is incremented by 1
a++;
//the variable n is decremented by 1
n--;
}
//and return true
return true;
}
Explanation:
<u>Following are the description of the following function</u>.
- Firstly, we define boolean type public function that is 'checkPalindrome' and pass string data type argument 'str' in its parameter.
- Set two integer data type variables that are 'a' initialize to 0 and 'n' which store the length of the string variable 'str' decremented by 1.
- Set the While loop that checks the variable 'a' is less than the variable 'n', then we set the If conditional statement to check that the string character is not in the variable n then, return false.
- Otherwise, it returns true.
