Prestige data is data set in the package carData in R. Download and install thispackage and use it to perform the following exercises.1. (a) How can you show the structure of the data? What data structure is prestige andwhat data type is each variable in Prestige?(b) What are the dimensions of the data?(c) Display the first six and last six rows of the data(d) What is the highest and the lowest Income? which category of occupation(s)is(are) paid these incomes?2. What percentage of occupational incumbents earn more than $25,000?3. What percentage of occupational incumbents earn above $20,000 and below $10,000?4. Construct a box plot to compare the distribution of Income according to type of oc-cupation. Comment on the distribution of each box plot and the presence of outliers.Colour the box plots with different colours OF your choice.5. Construct a histogram for each for income of each type of occupation. Do your his-tograms conform to your results from the box plots?6. Select the data on nursing.aides, physio.therapsts, pharmacists,pilots, taxi.drivers, longshoremen, typesettersandbookbinders.7. Construct a pie and bar charts for the type of occupation. Comment on the figures.8. Compute descriptive statistics on the income of incumbents to enable you describethis to a journalist from Daily Graphic to enable him/her write a report on incomedistribution.9. Obtain a scatter plot of income and prestige. Label the axes correctly and use plottingcharacter 15. Comment on the relationship.10. Compute the correlation coefficient of income and prestige; and the confidence intervalfor the population correlation coefficient. Does this interval enclose zero (0)? Fromthis, can you conclude that there exists significant relationship between income andprestige?

\2,723 answers Let me know if you have any doubt.?Prestigedf<-carData::Prestige # Q1. Provide a…

Prestige data is data set in the package carData in R. Download and install this package and use it to perform the following exercises. 1. (a) How can you show the structure of the data? What data structure is prestige and what data type is each variable in Prestige? (b) What are the dimensions of the data? (c) Display the first six and last six rows of the data (d) What is the highest and the lowest Income? which category of occupation(s) is(are) paid these incomes?

Prestige data is data set in the package carData in R. Download and install this package and use it to perform the following exercises. 1. (a) How can you show the structure of the data? What data structure is prestige and what data type is each variable in Prestige? (b) What are the dimensions of the data? (c) Display the first six and last six rows of the data (d) What is the highest and the lowest Income? which category of occupation(s) is(are) paid these incomes?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

What precisely is metadata? An answer to this question may be found in the result set's metadata. Result set information may be beneficial in a variety of situations.
What what do you mean when you mention "data pruning"?
Variable means an attribute or characteristics a. TRUE b. FALSE
a)What is data? =)Data is collection of raw facts.
Task 1: The Finance team wants to calculate a VAT (8%) on the amount of the stay reservations in the database. However, the team wants to calculate the VAT after the discounts are applied on the prices. In addition, it is important to remember if there is no discount/offers, then the value is NULL in the TRAVELS table. Create a procedure called VATCalculator to calculate the VAT amount and return with the corresponding travel ID. In addition, execute the procedure to account for NULL values and send the respective result to the team. The VAT value should be rounded to 2 decimals. Create a procedure to calculate the VAT. 1 Make sure you are using the following format to change the delimiter for the procedure: DELIMITER $$-- statements --END $$DELIMITER ; Test QueryCALL VATCalculator() Expected Results TRAVEL_ID VAT 5001 1.24 5002 1.64 5003 0.99 5004 2.12 5005 0.89 5006 1.05 5007 0.30 5008 1.51 5009 1.08 5010 1.64
Scenario: You are required to create the Data Flow Diagram for a website for "Online motorcycles in Nizwa purchase system". This system will be used by customers who want to buy any bike models from Nizwa. Customers can search bike models using search bar option. Customers must register their detail and open an account on the website to make any purchase. Customers can choose to make online payment (via debit card) or pay cash on delivery. If customer chooses to make online payment, system will provide the Payment Receipt and Order ID. Website administrator can add/delete/update items on website. Level-0: must include possible external entities, process and data flows. A BI !!
Look up student MAJOR and ROOM information based on the student NAME. Enter formula into B2. 1 NAME MAJOR ROOM 2 58 3 4 NAME MAJOR ROOM 5 $1 CIS DBH 6 S2 7 3 A/F DBH A/F DBH 8 $4 мом SCI 9 S5 мом DBH 10 56 CIS SCI 11 S7 CIS DBH 12 S8 A/F 13 S9 мом 14 S10 CIS Size Color Price Item T. 15 Size L T M 16 Color R. 17 Price 28 H. 29 30 XL R. 18
Display all the student names whose grade is C. Display the Section-Identifier and Course-name whose Course-number is “MATH2410”. Display the Student Name and the Course Name in which he has got “A” grade.
Input data validation means?
The InstantRide Driver Relationship team wants to learn how many travels each driver has done in the month of October. You need to send them the DRIVER_ID, and two calculated columns: DAY and RIDES. The DAY column is calculated using the DAY() function with the TRAVEL_START_TIME as the argument. The RIDES column is calculated by using the COUNT() function to determine the number of rides given for each day. Filter the results with the MONTH function.
For the term project, you should write a report on a chosen topic related to your field. Follow the steps below: Choose a topic : Technology Narrow it down : Algorithms and data structures Find at least 10 related articles to your topic Read the articles, synthesize them and report the parts you want. Use appropriate citations and quotations (APA 6th or 7th edition) You need a reference list at the end of your report. The report should be minimum 1000 and maximum 2000 words.
Some of the most common errors made when modeling data are as follows.