A survey was done at a beach. Since more people needed help from lifeguards ondays when more ice cream was sold, the conclusion was that ice cream causespeople to need assistance from a lifeguard. Suggest two reasons why this conclusionmay not be accurate. An art gallery asked people whether they preferred paintings of winter mountains orlakes at sunset. 78% of those surveyed said they preferred the sunset paintings. Themargin of error is 7%, 19 times out of 20.a) Explain what the last sentence means. (2 marks)b) Can we say with certainty that the most popular sort of painting is a painting of asunset? Explain. (2 marks)

Answered: A survey was done at a beach. Since…

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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I need help with just part c. Someone on here already answered it for me but I'm really confused as there are steps missing and I'm not sure what to put in the calculator. " The first quartile separates the lowest 25% of the observations from the higher 75% of the observations. The first quartile is denoted by Q1. The second quartile separates the lower 50% of the observations from the higher 50% of the observations. The second quartile is denoted by Q2.The second quartile is same as median. The third quartile separates the lowest 75% of the observations from the higher 25% of the observations. The third quartile is denoted by Q3. The third quartile can obtained as follows...." Third Quartile is 1 somehow, and I don't understand how it is.
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A survey was done at a beach. Since more people needed help from lifeguards on days when more ice cream was sold, the conclusion was that ice cream causes people to need assistance from a lifeguard. Suggest two reasons why this conclusion may not be accurate.