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Do Homework- Blair Martinson Goegle Chrome a Securehtlpswww.mathl.corn Slu North Central lexas CoMyLab and Masering yc kaspx?homeworkld-469800900&questionId;=t&flushed-falsedicId;=4894855&certerwin;=… cle Secure https://openvellum.ecollege.com.course.h Math1342.100 Elementary Statistic Methods Spring 2018 Blair Martinson | 2/18/18 4:29 PM 2 Homework: Hmwk 10 Section 3.2 - Measures of Dispersion Save Course Home MyLab Statistics Score: 0 of 1 pt 9ofl0 (6 complete) HW Score: 46.43%, 4.64 of 10 pts | My Courses Do Homework 3.2.35 Question Help Course Home Course Tools Homework Quizzes & Tests Student Activity 6 Changes made Al cne point he averae price of guar unkvaded gasoline was $3 60 eallon. Assume that the slandard deoviatlion price per gallon is so.05 per ga and us Chebyshevs inequalty to answer the tollowing (a) What percantage of gasoline stations had prices within 2 standard deviatons of the mean? b whal per crlage cr gasolinstatens had prices wilhin 1.5 slanda d dev at or's of the mean? what arc the gasolinc plus that awithin 1 5 stardan deviations or the mean? (c) What is the minimum percentage of gasoline stations that had prices between $3.18 and $3.997 Name: Due: Last Worked: 02Round lo two decimal plaocsas necded) Current Score: 46 Atterripts: This homework will 0() Al leastot gascline stahons nad pnces withnin 2 standard devistions at the mear ot gascline stations had prices within 2 standard devistions ot the mean Stucy Plan Gradebook Chapter Contents e Text Tools for Success Multimedia Library Purchase Options Question 1 (1/1) Question 5 (11) Question 9 (0'1) To see what to study n OK Enter your answer In the answer box and then click Check Answer Clear All Check Answer Type here to search

Explanation / Answer

a)% with in 2 std deviation =(1-1/k2)*100 =(1-1/22)*100 =75%

b))% with in 1.5 std deviation =(1-1/k2)*100 =(1-1/1.52)*100 =55.56%

prices that are with in 1.5 std deviation from mean =3.68 -/+ 1.5*0.05 =3.605 ; 3.755

c)

as 3.48 amd 3.88 are 4 std deviation from mean

hence mninimum % of prices which are between 3.48 amd 3.88 =(1-1/42)*100 =93.75%

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