/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 18 Explain the difference between c... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Problem 18

Explain the difference between cross-section and time-series data. Give an example of each of these two types of data.

Short Answer

Expert verified
Cross-sectional data is collected from many subjects at a specific point in time, like a survey in a school about favorite subjects. Time-series data is collected from the same subject repeatedly over a period of time, like tracking a student's grades throughout a school year.

Step by step solution

01

Define Cross-sectional Data

Cross-sectional data is data collected from many subjects at a single point in time. Comparison is done between the different data points. The term came from studies where the data was collected at a 'cross-section' of the population.
02

Provide an Example of Cross-sectional Data

A survey conducted in a school asking students about their favorite subjects. This data would be considered cross-sectional since it was collected at one point in time and analyzes different subjects.
03

Define Time-series Data

Time-series data is data collected from the same subject(s) repeatedly over a period of time. The main purpose is to study changes over time. The term arises from the idea that data points are recorded in a series over time.
04

Provide an Example of Time-series Data

Monitoring a student's grades throughout the school year would be considered time-series data. The same subject (the student) is observed repeatedly (each grading period), allowing for the tracking of changes in grades over time.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Classify the following as cross-section or time-series data. a. Average prices of houses in 100 cities b. Salaries of 50 employees c. Number of cars sold each year by General Motors from 1980 to 2012 d. Number of employees employed by a company each year from 1985 to 2012

Indicate whether each of the following constitutes data collected from a population or a sample. a. Salaries of CEOs of all companies in New York City b. Five hundred houses selected from a city c. Gross sales for 2012 of four fast-food chains d. Annual incomes of all 33 employees of a restaurant

Briefly describe internal and external sources of data.

State which of the following is an example of sampling with replacement and which is an example of sampling without replacement. a. Selecting 10 patients out of 100 to test a new drug b. Selecting one professor to be a member of the university senate and then selecting one professor from the same group to be a member of the curriculum committee

Give one example each of sampling with and sampling without replacement.
See all solutions

Recommended explanations on Math Textbooks

Discrete Mathematics

Read Explanation

Calculus

Read Explanation

Logic and Functions

Read Explanation

Pure Maths

Read Explanation

Geometry

Read Explanation

Theoretical and Mathematical Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.