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Answer:
#include <iostream>
using namespace std;
int cube(int num)//function cube..
{
return num*num*num;
}
int main() {
int result=cube(4);//result stores the value of cube(4).
cout<<result;//displaying it to the screen.
return 0;
}
Explanation:
The above code is in C++ language.The function cube is passed with value 4 and the result of it is stored in the variable result of integer type.Then the result is displayed using the cout. Which is used to print the statement to the output screen.
Complete Question:
A campus bookstore sells both types and in the last semester sold 56% laptops and 44% desktops. Reliability rates for the two types of machines are quite different, however. In the first year, 5% of desktops require service, while 15% of laptops have problems requiring service.
Given that a computer required service, what is the probability that it was a laptop?
Answer:
Probability = 0.084
Explanation:
Given
Laptops = 56%
Desktop = 44%
Service Required (Laptop) = 15%
Service Required (Desktop) = 5%
Required
Determine the probability that a selected computer is a laptop and it requires service.
The question tests our knowledge of probabilities using "and" condition.
What the question requires is that, we calculate the probability of selecting a LAPTOP that REQUIRES SERVICE
Note the capitalised words.
This will be calculated as follows:
Probability = P(Laptop) and P(Service Required (Laptop))
[Substitute values for P(Laptop) and P(Service Required (Laptop))]
Probability = 56% * 15%
[Convert to decimal]
Probability = 0.56 * 0.15
Probability = 0.084
