Answered: Explain the meaning of an element, a…

Math

Statistics

Explain the meaning of an element, a variable, an observation, and a data set.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Each year forbes ranks the world’s most valuable brands. A portion of the data for 82 ofthe brands in the 2013 forbes list is shown in Table 2.12 (forbes website, february, 2014).The data set includes the following variables:brand: The name of the brand.Industry: The type of industry associated with the brand, labeled Automotive& Luxury, Consumer Packaged Goods, financial Services, Other, Technology.brand Value ($ billions): A measure of the brand’s value in billions of dollarsdeveloped by forbes based on a variety of financial information about the brand.1-Yr Value Change (%): The percentage change in the value of the brand over theprevious year.brand Revenue ($ billions): The total revenue in billions of dollars for the brand.a. Prepare a crosstabulation of the data on Industry (rows) and brand Value ($ billions).Use classes of 0–10, 10–20, 20–30, 30–40, 40–50, and 50–60 for brand Value($ billions).b. Prepare a frequency distribution for the data on Industry.
Define the term Qualitative variable with example?
What type of data (categorical, discrete numerical, continuous numerical) is each of the following variables? If there is any ambiguity about the data type, explain why the answer is unclear. Your college program. The number of college credits you have earned. Length of a TV commercial. The country with the most 2021 Olympic medals
Please complete the following question. Make sure you are responding to all parts of the question. The number of awards earned by students at one high school is recorded. Predictors of the number of awards earned include the type of program in which the student was enrolled (e.g., vocational, general or academic) and the score on their final exam in math. Variables Participant number (ID) Number of awards Program type (vocational - 1; general - 2; academic - 3 Math Score id num_awards prog math 45 1 3 41 108 1 1 41 15 1 3 44 67 1 3 42 153 1 3 40 51 1 1 42 164 1 3 46 133 1 3 40 2 1 3 33 53 1 3 46 1 1 3 40 128 0 2 38 16 1 3 44 106 1 3 37 89 1 3 40 134 1 1 39 19 1 1 43 145 0 3 38 11 1 2 45 117 0 3 39 109 1 1 42 12 1 3 45 37 1 3 40 69 0 3 40 43 1 2 43…
Differentiate between nominal data and ordinal data. Give at least two examples of nominal and ordinal data.
Given the data set A = {0, 0, 12, 13, 14, 15, 16, 18, 22, 25, 30} which of the following is a true statement? O There are two modes for the data set. O The mean is greater than the median. O The mean and the median have the same value. O There is no mode for the data.
R Studio library(poliscidata) 2. (Dataset: nes. Variables: dhsinvolv_message, polknow_combined.) Online political activism is a relatively new phenomenon. In recent years, online social networks like Facebook and Twitter have become part of our everyday experiences and, for many people, a forum for political news and debate. From your own personal experiences, you may have some impressions about who is likely to post political messages online, but our personal perspectives are bound to be limited and incomplete. Let's use the nes dataset to gain a better understanding of who uses social media to promote political ideas. Survey participants were asked whether they had posted a political message on Facebook or Twitter in the last 4 years and the dhsinvolv_message variable recorded their responses. 1. According to the nes dataset, roughly 20% of respondents indicated that they had posted a social media message about politics in the past 4 years. If the probability of an…
Answer d & e only
A social media app is conducting a study on the amount of time users spend on the app. They collect the following variables. Age Years: How old they are in years? Income: Monthly Income Location: What country do they live in? Device: Do they use an iPhone, Samsung, other? Service: Who provides their mobile phone service? For example: T-Mobile, At&t, Verizon, ect Hours: How many hours do they spend on the app per week. A) Which variable could the research construct a one proportion z-interval for? B) The social media app just launched a new algorithm that suggest content in an effort to increase the amount of time the user spends on the app. The researchers want to use the survey results to see if there is statistically significant evidence that on average users spend more than 10 hours per week on the social media app. The researchers found in their sample of 44 users, the mean hours spent on the app is 10.5 hours with a standard deviation of 5.675 hours. Which type of hypothesis test…
what is the indepedent and dependent variable in the sentence below? What is the average cellphone loadconsumption of Senior High Schoolstudents according to sex?
What is the dependent and independent variable in the sentence below? What is the relationship between genderand A level of exam results?
What is primary data?