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- (Statistics) This is the formula for the standard normal deviate, z, used in statistical applications: z=(X)/ X is a single value. refers to an average value. refers to a standard deviation. Using this formula, you need to write a program that calculates and displays the value of the standard normal deviate when X=85.3,=80,and=4. a. For this programming problem, how many outputs are required? b. How many inputs does this problem have? c. Determine a formula for converting input items into output items. d. Test the formula written for Exercise 7c, using the data given in the problem.arrow_forward4. During each summer, John and Jessica grow vegetables in their backyard and buy seeds and fertilizer from a local nursery. The nursery carries different types of vegetable fertilizers in various bag sizes. When buying a particular fertilizer, they want to know the price of the fertilizer per pound and the cost of fertilizing per square foot. The following program prompts the user to enter the size of the fertilizer bag, in pounds, the cost of the bag, and the area, in square feet, that can be covered by the bag. The program should output the desired result. However, the program contains logic errors. Find and correct the logic errors so that the program works properly. // Logic errors. #include #include using namespace std; int main() { double costs double area; double bagsize; cout > bagsize; cout > cost; cout > area; cout << endl; cout << "The cost of the fertilizer per pound is: $" << bagsize / cost << endl; cout << "The cost of fertilizing per square foot is: $" << area / cost << endl; return 0; }arrow_forwardThe cost of renting a room at a hotel is, say $100.00 per night. For special occasions, such as a wedding or conference, the hotel offers a special discount as follows: If the number of rooms booked at least 10, the discount is 10%; at least 20, the discount is 20%; and at least 30, the discount is 30%. Also if rooms are booked for at least three days, then there is an additional 5% discount. Write a program that prompts the user to enter the cost of renting one room, the number of rooms booked, the number of days the rooms are booked, and the sales tax (as a percent). The program outputs the cost of renting one room, the discount on each room as a percent, the number of rooms booked, the number of days the rooms are booked, the total cost of the rooms, the sales tax, and the total billing amount. Your program must use appropriate named constants to store special values such as various discounts.arrow_forward
- Interest Rates Savings accounts state an interest rate and a compounding period. If theamount deposited is P, the stated interest rate is r, and interest is compounded m timesper year, then the balance in the account after one year is P⋅(1+rm)m. For instance, if$1000 is deposited at 3% interest compounded quarterly (that is, 4 times per year), thenthe balance after one year is1000⋅(1+.034)4=1000⋅1.00754=$1,030.34.Interest rates with different compounding periods cannot be compared directly.The concept of APY (annual percentage yield) must be used to make the comparison. TheAPY for a stated interest rate r compounded m times per year is defined byAPY=(1+rm)m−1.(The APY is the simple interest rate that yields the same amount of interest after oneyear as the compounded annual rate of interest.) Write a program to compare interestrates offered by two different banks and determine the most favorable interest rate. SeeFig. 4.24.arrow_forwardExercise II Write a program that finds the positive integer solutions of the following equation ax³ + bx² + cx' + d = 0. The user enters the values of coefficients a, b, c and d. The program should test each integer starting from -50 to 50, and each time the equation is equal to zero, it prints its value as well as "is a solution". At the end, it displays the total number of positive integers found. Note that if the equation has more than one solution, the plural word “solutions" is used in the output. Sample run 1: Enter the coefficient of a, b, c, d: 1 -8.5 21 -13.5 1 is a solution 3 is a solution The equation has 2 integers as solutions Sample run 2: Enter the coefficient of a, b, c, d: 6 48 103.5 67.5 The equation has no integer solutions Sample run 3: Enter the coefficient of a, b, c, d: 1 -1 -12 0 4 is a solution The equation has 1 integer solutionarrow_forwardA software company sells a package that retails for $109. Quantity discounts are givenaccording to the following table.Quantity Discount10 - 39 10%40 - 65 18%66 - 90 27%91 - 120 35%121 – 199 42%200 or more 48%Write a program using the if/else if/else statement that asks for the number of units soldand computes the total cost of the purchase and the savings due to the discountapplied. The program should also display the number of units purchased and thediscount in percentage. The output should include the following text:Number of units purchased is:Discount applied is:Total savings due to discount is:The total cost of the purchase is:Do NOT use the switch statement, any logical operator or anything that looks likeone in the program. You will not receive credit for the program if you do. SeeProgram 4-9 on page 183 of your textbook for help.Don’t forget to include the developerInfo function and do not accept negative quantityvalues.arrow_forward
- Financial application: compute future apartment rent) Suppose that the rent for an apartment is $1000 thisyear and increases 3% every year. Write a program that computes the rent in five years and the total rent forone year starting five years from now.arrow_forwardThe text output of a program should be well-formatted for readability as well as displaying numbers with the proper notation and precision levels. The default output formatting in C++ is often not desirable, so one can add explicit instructions to the cout stream. These manipulators and functions are defined in the library. O setw (n): set the width (number of characters) of the next item to be at least n. • If the next item width is less than n, then pad the item with extra spaces. • If the next item width is greater than n, then the entire next item is output. • left and right: when used in conjunction with setw (), justify the item to one side forcing the padding to the other side. Note that these manipulators are persistent, i.e. remains effective until the next change occurs. • fixed: use the fixed-point notation (the decimal point notation that we are familiar with) when displaying a numerical item. Note that fixed defaults to 6 decimal points if the data type is float or…arrow_forwardPeriodic compounding The total accumulated value, including the principal sum P, is given by the formula: where: nt A = P(1 + 1) "² n A is the final amount Accumulated Value P is the original principal sum r is the nominal annual interest rate n is the compounding frequency t is the overall length of time the interest is applied (expressed using the same time units as r, usually years). Using the above formula write a program that will display the following table. Principal-Value | Times-Interest-Compunded | Annual-Int-Rate | Term | Accumulated-Value 1000 6.00% 10 3.20% 15 2000 3000 9.25% 10 2 ** 3 8 | You must use exponent operator to compute P Exponent Operator in Python is ** Examples m=3 n=2 p= m **n (https://en.wikipedia.org/wiki/Compound_interest) 1 2 4 base = 2 exp = 4 a = base ** exp print(a) 16 print("Solving the exponent, we get Solving the exponent, we get 9 ,p ) 1790.85 3219.89 7486.33arrow_forward
- LIFE INSURANCE PREMIUM CALCULATOR Write a C program that calculates monthly, quarterly, half-yearly and yearly life insurance premium based on given sum assured. Monthly Premium Quarterly Premium Half Yearly Premium Yearly Premium sum assured / (years*12). sum assured / (years*4). = sum assured / (years 2). = sum assured / years. %3D %3D Output of program Enter your sum assured: 250000 Enter life insurance policy term (in years):5 Your Monthly Premium Your Quarterly Premium Your Half Yearly Premium: 25000.00 Your Yearly Premium : 4166.67 : 12500.00 : 50000.00arrow_forwardA mail order house sells five different products whose product numbers and retail prices are: product 1 - $2.98, product 2 - $4.50, product 3 - $9.98, product 4 - $4.49, product 5 - $6.87. Write a program that reads a series of pairs of numbers (from user). That is, each time it reads the pairs of values as follows: i) product number ii) quantity of that product sold Your program should use a switch statement to determine the retail price for each product. Your program should calculate and display the total retail value of all products sold. Use a sentinel-controlled while loop so user can indicate when the program should stop looping and display the final results.arrow_forwardThe BITI Students Club is offering a new travelling package or membership. People can choose either one of three packages : a) business, b) family or c)single package. Each packages have different prices for monthly subscription. A business package is RM40, a family package is RM20 and single package is RM30. People can choose any package and duration-in-month for subscription. The program will calculate and display the total of payment. The program can be repeated as long as the option to exit is not selected. Any invalid input will result in an error message to retry. Create a program that have at least three user defined functions. Three of the functions are having the return type void and calculating the total of each packages. The display is done in separate function.arrow_forward
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrC++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning