Match the items with their respective descriptions.
2 answers:
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Answer:
import random
def ran(lower_bound, upper_bound):
return random.randrange(lower_bound, upper_bound)
print(ran(3, 8))
Explanation:
The programming language used is python.
Modules are imported using the import keyword. In the first line the random module is imported.
A function ran is defined and it has two parameters, lower and upper bound that wll be passed to the function from random module.
The random module is a module that is used to generate random numbers, it is a very common module in programming, some of the popular functions in the module are random.randint and random.randrange. There are several other functions but these are the most common. the randint(a, b) takes two arguments and returns a random integer between the two arguments.
randrange(start, stop, step); It can take up to three arguments but has only compulsory argument that must be given for it not to generate an error and that is the stop.
when only the stop is defined, it assumes the start as zero and creates a range from 0 - stop and returns a random number within that range.
When start and stop arguments are given, it returns a number within the range of start - stop.
Start and stop must be given for there to be a step, if the step is given, it means the array containing the range of numbers will skip a step after each number.
The program makes use of the random.randrange(start, stop) and the upper and lower bounds are passed as its arguments.
Finally, the function is called and its return value is printed to the screen.
Given Information:
Total number of customers = 12,467
Customers who purchase one or more energy drinks per week = 14%
Customers who prefer citrus flavored energy drinks = 64% of customers who purchase one or more energy drinks per week
Required Information:
1. the approximate number of customers in the survey who purchase one or more energy drinks per week
2. the approximate number of customers in the survey who prefer citrus flavored energy drinks
Code with Explanation:
#include <iostream>
using namespace std;
int main()
{
int customers = 12467; // total no. of customers given
int buy_drink; // to store the number of customers who buy one or more energy drinks per week
int citrus_drink; // to store the number of customers who prefer citrus flavored energy drinks
buy_drink = customers*0.14; // multiply total number of customers with the % of customers who buy energy drinks
citrus_drink = buy_drink*0.64; // multiply no. of customers who buy one or more energy drinks per week with % of customers who prefer citrus flavor
// display the results calculated above
cout<<"Total number of customers: "<<customers<<endl;
cout<<"Number of customers who buy one or more drinks per week: "<<buy_drink<<endl;
cout<<"Number of customers who prefer citrus flavored drinks per week: "<<citrus_drink<<endl;
return 0;
}
Output:
Total number of customers: 12467
Number of customers who buy one or more drinks per week: 1745
Number of customers who prefer citrus flavored drinks per week: 1116
