Question

Use MatLab to solve

Given matrix Price = [ 10, 20, 15, 27, 30, 25]

                      Quantity = [100, 50, 75, 40, 80, 75]

Question: 1. find the average price

                 2. find how many items are sold above the average price

                 3. Find the total income from transaction whose price is above the average price found in (1) above

                 3. find total income from transactions whose price is above the average price

Answer 1

Price = [ 10, 20, 15, 27, 30, 25];
Quantity = [100, 50, 75, 40, 80, 75];

% Part 1
avg = 0;
for i=1:length(Price)
    avg = avg + Price(i);
end
avg = avg / length(Price);
fprintf("Average price = %.2f\n",avg);

% Part 2
aboveAvg = 0;
for i=1:length(Price)
    if(Price(i)>avg)
        aboveAvg = aboveAvg + 1;
    end
end
fprintf("Number of items are sold above the average price = %d\n",aboveAvg);

% Part 3 and 4
totalPrice = 0;
for i=1:length(Price)
    if(Price(i)>avg)
        totalPrice = totalPrice + (Price(i)*Quantity(i));
    end
end
fprintf("Total income from transaction whose price is above the average price found = %.2f\n",totalPrice);