Question

C++

Jerry’s Appliance has a special promotion for its week long Anniversary Sale. After Customers have picked out the merchandise they wish to buy, they can draw three balls from an urn to determine the sum of the discount they will receive on their purchase. The balls value is as follows Yellow =1 Blue =2 Red = 3 Purple =4 Orange =5 Green = 6 Maroon=7 and Black=8. There are three balls of each color in the urn. The balls are drawn without replacement by each customer but returned to the urn before the next customer draws.

Jerry would like you to simulate 1000 sets of random draws storing the sums in a tally array. Print out the values of the tally array along with an analysis of the cost of the promotion.

(Hint: Enums, Vectors, Rand, and Tally arrays maybe useful)

Build a vector or an array ( probably called Urn) size [24]

Create a rand object range to start at 24 , 23, 22

For loop for 1000 draws

Add the value of three balls to give discount

Tally Array counts the occurrence of each answer

Tally Array [25] note 0,1,2,are always going to be empty

int tally [25] = {0};

total = ball1+ball2 +ball3;

tally[total]++;

grandtotal +=total

average = grandtotal /draw

median = middle value

mode = highest tally

Average = median = mode It is a normal distribution

Your print to monitor is a list of the the tally array and the average

OUTPUT :

Discounts of 3% = 1

Discounts of 4% = 4

Discounts of 5% = 7

........

Discounts of 24% = 0

The average discount was 13.5%

Your results will vary every time the program is run because it is random

Answer 1

#include<iostream>
#include<cstdlib>



using namespace std;

int main() {
        int draw = 1000;
        int tally [25] = {0};
        int grandtotal = 0;

        for(int i=0; i<draw; i++) {
                int b1 = 1 + rand() % 8;
                int b2 = 1 + rand() % 8;
                int b3 = 1 + rand() % 8;
                int total = b1 + b2 + b3;
                tally[total]++;
                grandtotal +=total;
        }

        double avg = grandtotal /draw;
        
        for(int i=3; i<=24; i++) {
                cout << "Discounts of " << i << "% = " << tally[i] << endl;
        }
        cout << "Average Discount % = " << avg << endl;
        return 0;
}

please upvote. Thanks!