Find the coefficient of variation for prices of these three stocks
4.17Â Â Â Â Â Â (a) Find the coefficient of variation for prices of these three stocks. (b) Which stock has the greatest relative variation? (c) To measure variability, why not just compare the standard deviations?
Stock A: x–        = $24.50, s = 5.25
Stock B: x–           = $147.25, s = 12.25
Stock C: x–             = $5.75, s = 2.08
4.18Â Â Â Â Â Â Prof. Hardtack gave four Friday quizzes last semester in his 10-student senior tax accounting class. (a) Find the sample mean, standard deviation, and coefficient of variation for each quiz.
(b) How do these data sets differ in terms of central tendency and dispersion? (c) Briefly describe and compare student performance on each quiz.                                                                                       Quizzes
Quiz 1: 60, 60, 60, 60, 71, 73, 74, 75, 88, 99
Quiz 2:Â 65, 65, 65, 65, 70, 74, 79, 79, 79, 79
Quiz 3:Â 66, 67, 70, 71, 72, 72, 74, 74, 95, 99
Quiz 4:Â 10, 49, 70, 80, 85, 88, 90, 93, 97, 98
Â
Answers
Status NEW
Posted 06 May 2017 04:05 PM
My Price 10.00
-----------
Attachments
file 1494088294-Answer.docx preview (183 words )
4-----------.17----------- Â-----------  ----------- Â-----------  -----------(a)----------- Fi-----------nd -----------the----------- co-----------eff-----------ici-----------ent----------- of----------- va-----------ria-----------tio-----------n f-----------or -----------pri-----------ces----------- of----------- th-----------ese----------- th-----------ree----------- st-----------ock-----------s. -----------(b)----------- Wh-----------ich----------- st-----------ock----------- ha-----------s t-----------he -----------gre-----------ate-----------st -----------rel-----------ati-----------ve -----------var-----------iat-----------ion-----------? (-----------c) -----------To -----------mea-----------sur-----------e v-----------ari-----------abi-----------lit-----------y, -----------why----------- no-----------t j-----------ust----------- co-----------mpa-----------re -----------the----------- st-----------and-----------ard----------- de-----------via-----------tio-----------ns?----------- S-----------toc-----------k A-----------: x-----------–----------- Â-----------  ----------- Â-----------  ----------- Â----------- =----------- $2-----------4.5-----------0,Â----------- sÂ----------- = -----------5.2-----------5 -----------Sto-----------ck -----------B: -----------xâ€-----------“ ----------- Â-----------  ----------- Â-----------  ----------- Â-----------  -----------  -----------= $-----------147-----------.25-----------, -----------s -----------= 1-----------2.2-----------5 -----------Sto-----------ck -----------C: -----------xâ€-----------“ ----------- Â-----------  ----------- Â-----------  ----------- Â-----------  ----------- Â-----------  ----------- = -----------$5.-----------75,----------- s----------- =----------- 2.-----------08 ----------- 4.-----------18Â-----------  ----------- Â-----------  ----------- P-----------rof-----------. H-----------ard-----------tac-----------k g-----------ave----------- fo-----------ur
Not Rated(0)