Homework Answers

1.    After imputation of nulls with mean what is the average value of the compressive strength in concrete?

2.    The feature that has a moderately strong relationship with compressive strength in concrete is?

3.    Standardize the dataset using standardscaler(), split the dataset into train and test of proportions 70:30 and set the random state to 1. Build a Linear Regression Model on the data and the resulting r-squared value is between which range?

You work in a printing office that the machine there can print documents in different colors. It gets an integer number between 1 to 7 and prints the documents in rainbow colors, as shown in the following table:

Number Matched Color

1 Violet

2 Indigo

3 Blue

4 Green

5 Yellow

6 Orange

7 Red

Design an algorithm and write a C++ program to do the following:

• Prompt user to enter a number between 1 and 7
• Use selection structure such as if-else or switch to find the color based on the previous table
• Output the color related to input number. See the sample output.
• Save the output in a file named “color.txt”.

Sample Run

Enter a number between 1 and 7: 2

You have selected number 2 which is orange.

Output File "color.txt"

You have selected number 2 which is orange.

Here are the numbers and match colors:

1 ------- Violet

2 ------- Indigo

3 ------- Blue

4 ------- Green

5 ------- Yellow

6 ------- Orange

7 ------- Red

Exercise

25. Create an application that calculates a customer's water bill for the Canton Water Department. The user will enter the current meter reading and the previous meter reading. The application should calculate and display the number of gallons of water used and the total charge for the water. The charge for water is $1.75 per 1000 gallons, or 0.00175 per gallon. However, there is a minimum charge of $19.50. In other words, every customer must pay at least $19.50. Display the total charge with a dollar sign and two decimal places. Use the following names for the solution and project, respectively: Canton Solution and Canton Project. Save the solution in the VbReloaded2015\Chap04 folder. Change the form file's name to Main Form.vb. Create the interface and then code the application. Save the solution and then start and test the application. Close the solution. (1-4)

Will try to send the pictures that go with this. This is the 2nd part of my question.

Lab6: Canton Water Department

Lab6 requires you to create the following: 

• Exercise 25 - Canton Water Department (p. 225)
• An example form is provided below
• Make sure to include Pseudocode or Flowchart for all code Events
• Include this file in submitted lab folder

Your lab needs to include the following: 

• Use proper variable types, names, and naming conventions
• Use proper control (buttons, labels, etc.) names and naming conventions
• Use the three option statements found in figure 3-23 (p. 136)
• Do not leave any blank blocks of code or events
• Use proper access keys and appropriate tab order
• Include a default button when appropriate
• Lock form controls
• Include documentation comments on the main form code, as well as code comments for each major line of code
• Add the solution folders to a created folder with the following naming convention: CourseNumber_LastNameFirstInitial_LabXX
• Folders should be compressed

I will send the rest in another question