Standard deviation s Study guides, Class notes & Summaries

Basic Statistics for Business and Economics, 9e (Lind) Chapter 3 Describing Data: Numerical Measures 1) A value that "attempts to pinpoint the center of a distribution of data" is referred to as a measure of location. Answer: TRUE Explanation: The purpose of a measure of location is to pinpoint the center of a distribution of data. An average is a measure of location that shows the central value of the data. Four measures of location are discussed in the text: the arithmetic mean, the media...

WGU Academy Statistics Which of the following is true regarding a probability of an event P(A)? - ANS 0≤P(A)≤1 The probability of an event can any number between 0 and 1, including 0 and 1. In other words, the probability of an event cannot be more than 1 or less than 0. Which of the following represents the probability of an event that is more likely not to occur than it is to occur, but would not be unusual for it to occur? - ANS 0.32 1250 randomly chosen in...

This document contains workings, explanations and solutions to the MIP2602 Assignment 4 (QUALITY ANSWERS) 2024. For assistance whats-app us on 0.6.8..8.1.2..0.9.3.4... Question 1 1.1 Read the scenario below and answer the questions that follow: Mrs Mbeki conducted a survey to find out how many coins the learners in Grade 5 at IMMACULATE CONVENT school had on them (in their pockets or purses). Mrs Mbeki randomly surveyed 40 Grade 5 learners at IMMACULATE CONVENT school. She obtained the follo...

ENG1515 Assignment 2 (DETAILED ANSWERS) 2024 - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED Answers, guidelines, workings and references ...... Section A: Content-Based Questions 1. Read Text A below and answer the questions that follow. TEXT A 5. 10 15 CHANGE THE WORLD 1. The motto of Nelson Mandela Metropolitan University is: “Change the World”, a noble mission inspired by the famous statement, Nelson Mandela that “education is the most powerful wea...

Question 1 10 / 10 pts You may find the following files helpful throughout the exam: Statistics_Equation_Sheet (Links to an external site.) Standard Normal Table (Links to an external site.) T Table (Links to an external site.) A new drug is introduced that is supposed to reduce fevers. Tests are done with the drug. The drug is given to 55 people who have fevers. It is found that the mean time that it takes for the fever to get back to normal for this test group is 380 minutes with a ...

The distribution of heights for adult men in a certain population is approximately normal with mean 70 inches and standard deviation 4 inches. Which of the following represents the middle 80 percent of the heights? 64.87 inches to 75.13 inches The distribution of the amount of water used per wash cycle, in gallons, by a particular brand of dishwasher during a wash cycle is approximately normal with mean 4 gallons and standard deviation 0.2 gallon. Which of the following is closest to the p...

SPCE 630 FINAL EXAM QUESTIONS AND ANSWERS 100% SOLVED Threats to internal validity include: Testing, maturation, procedural infidelity Match the definition. 2A. Events that occur during the experiment but that are not related to planned procedural changes that may influence the outcome History 2B. Changes in behavior due to the passage of time Maturation 2C. Occurs when participants need to respond to the same test repeatedly during a baseline or probe condition, which influences responding T...

Explain what we mean by a confidence level (exp. 95%) The percentage of intervals, based on all possible samples of the same size taken from the same population, that contain the parameter. For example, if we construct 100 95% confidence intervals using 100 samples of the same size, approximately 95 of the intervals will contain the true parameter and 5 will not. A point estimate is the value of a _________ that estimates the value of a ____________ statistic, parameter ...

DSC1630 Assignment 4 (DETAILED ANSWERS) Semester 2 2024 - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED Answers, guidelines, workings and references .. Question 1 Complete Mark 1.00 out of 1.00 QUIZ Sophie wants to buy the Ever-so-Young shop around the corner. The following cash fl ows are involved Time in years Cash fl ows (R) 2 200 000 3 –500 000 7 700 000 8 850 000 9 –210 000 Sophie can borrow money at 19% per annum while she can invest at 17,5...

ENG1515 Assignment 2 (COMPLETE ANSWERS) 2024 (777866) - DUE 4 June 2024 ;100% TRUSTED workings, explanations and soluti ons. ..... 1. Read Text A below and answer the questions that follow. TEXT A 5. 10 15 CHANGE THE WORLD 1. The motto of Nelson Mandela Metropolitan University is: “Change the World”, a noble mission inspired by the famous statement, Nelson Mandela that “education is the most powerful weapon which you can use to change the world”. For, “it is through education that the ...