tag:blogger.com,1999:blog-7181971724615697511.post2671031347939023887..comments2019-09-21T02:39:30.886-07:00Comments on Tanza Erlambang Update: MATH 1280 Introduction to Statistics – Assignment 2 Tanza Erlambanghttp://www.blogger.com/profile/13033202053400016976noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-7181971724615697511.post-14646756999934676022019-09-20T01:38:10.931-07:002019-09-20T01:38:10.931-07:00MATH 1280 Introduction to Statistics – Assignment ...MATH 1280 Introduction to Statistics – Assignment 2 Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-30106912114851600522019-09-18T02:40:32.115-07:002019-09-18T02:40:32.115-07:00MATH 1280 Introduction to Statistics – Assignment ...MATH 1280 Introduction to Statistics – Assignment 2 Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-24637327872375850782019-09-15T18:20:59.797-07:002019-09-15T18:20:59.797-07:00MATH 1280 Introduction to Statistics – Assignment ...MATH 1280 Introduction to Statistics – Assignment 2 <br />-<br />Question 2. “There is a cumulative relative frequency table printed above for petal lengths (using rounded values for petal length). Below the number 3 in that table is the number .35. What does .35 represent? (multiple choice).”<br /><br />“a. Three of the flowers had petal length of 0.35.”<br />“b. There were 0.35 observations that had petal length of 3 (after rounding the petal lengths).”<br />“c. Of all the flowers measured in this sample 35% had a petal length of 3 (after rounding the petal lengths).”<br />“d. Of all the flowers measured in this sample 35% had a petal length of 3 or less (after rounding the petal lengths).”<br />“e. A study of all flowers on the planet would show that about 35% had petal lengths of 3 or less (after rounding the petal lengths).”<br /><br />Answer:<br />Correct is : (d). “Of all the flowers measured in this sample 35% had a petal length of 3 or less (after rounding the petal lengths).”Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-30344161218198487392019-09-11T06:42:33.584-07:002019-09-11T06:42:33.584-07:00MATH 1280 Introduction to Statistics – Assignment ...MATH 1280 Introduction to Statistics – Assignment 2 <br />-<br />Part 1 - Answer for questions 1 to 4<br />“The file "flowers.csv" file contains information on measurements of the iris flowers.” “Create an R data frame by the name "flower.data" that contains the data in the file.”<br />“The following R code shows an example of how to round a vector of numbers to zero decimal places and then calculate some statistics using the rounded numbers.” <br />“You might need some of the calculations for this assignment, but you might not need others.” <br />“You would replace example$years with the name of the R object that you want to analyze (in other programming languages, you might call example$years a variable).” <br /><br /><br /><br />“> x <- round(example$years, 0)”<br />“> freq <- table(x)” <br />“> rel.freq <- freq/sum(freq)”<br />“> cumsum(rel.freq)”<br /><br />“Cumulative Frequency Table for Petal Length”<br /><br />“Use the following table to answer tasks 2-4.”<br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Value:<br />1<br />2<br />3<br />4<br />5<br />6<br />7<br />Cumulative Relative Frequency:<br /><br /><br /><br />.16<br />.33<br />.35<br />.58<br />.81<br />.97<br />1.00<br /><br /><br />Tasks Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-18328585230742227782019-09-03T06:18:18.500-07:002019-09-03T06:18:18.500-07:00MATH 1280 Introduction to Statistics – Assignment ...MATH 1280 Introduction to Statistics – Assignment 2 <br />@<br />Question 1. “Sometimes it is difficult to understand data if you do not know what the numbers represent. Provide short definitions of two words: sepal, and petal (be sure to cite your sources even if you paraphrase):”<br />Answer:<br />sepal: “one of the individual leaves or parts of the calyx of a flower. “ (Dictionary.com, 2017).<br /><br />petal: “one of the often colored segments of the corolla of a flower.” (Dictionary.com, 2017)<br />Reference<br />Dictionary.com, (2017). Definitions and synonyms. Retrieved from http://www.dictionary.com/Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-35133052868709398652019-08-03T04:58:58.117-07:002019-08-03T04:58:58.117-07:00MATH 1280 Introduction to Statistics – Assignment ...MATH 1280 Introduction to Statistics – Assignment 2 <br />@<br />Question 3. “Using only the cumulative relative frequency table printed above combined with some simple paper-and-pencil calculations, which petal length occurs most frequently?”<br />Answer:<br />We can find “most frequency” by calculating. The result shown that Petal length of 4 and 5 occurs “most frequently” with relative frequency is 0.23Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-37568084499830765912019-07-31T19:16:00.367-07:002019-07-31T19:16:00.367-07:00MATH 1280 Introduction to Statistics – Assignment ...MATH 1280 Introduction to Statistics – Assignment 2 <br />@<br />Question 4. “Describe how you determined your answer to the previous question (describe the calculations that you used). Do not show R code for this task--it will not be counted as an answer.”<br />Answer:<br />First, find different between Cumulative Relative Frequency of each petal length. Second, observe the results that are the relative frequency of every petal length. I found that the highest value the relative frequency of is 0.23 (Petal length of 4 and 5 occurs most frequently). <br />1.00 - 0.97 = 0.03<br />0.97 - 0.81 = 0.16<br />0.81 - 0.58 = 0.23…..> most frequency of petal length 4<br />0.58 - 0.35 = 0.23…..> most frequency of petal length 5<br />0.35 - 0.33 = 0.03<br /><br />0.33 - 0.16 = 0.16Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-89287558505460849482019-07-01T08:13:10.909-07:002019-07-01T08:13:10.909-07:00MATH 1280 Introduction to Statistics – Assignment ...MATH 1280 Introduction to Statistics – Assignment 2 <br />@<br />Question 2. “There is a cumulative relative frequency table printed above for petal lengths (using rounded values for petal length). Below the number 3 in that table is the number .35. What does .35 represent? (multiple choice).”<br /><br />“a. Three of the flowers had petal length of 0.35.”<br />“b. There were 0.35 observations that had petal length of 3 (after rounding the petal lengths).”<br />“c. Of all the flowers measured in this sample 35% had a petal length of 3 (after rounding the petal lengths).”<br />“d. Of all the flowers measured in this sample 35% had a petal length of 3 or less (after rounding the petal lengths).”<br />“e. A study of all flowers on the planet would show that about 35% had petal lengths of 3 or less (after rounding the petal lengths).”<br /><br />Answer:<br />Correct is : (d). “Of all the flowers measured in this sample 35% had a petal length of 3 or less (after rounding the petal lengths).”Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-55353063773883743022019-06-03T04:22:47.222-07:002019-06-03T04:22:47.222-07:00Thank you to visit my article:
MATH, 1280 Introduc...Thank you to visit my article:<br />MATH, 1280 Introduction to Statistics – Assignment 2 <br />@<br />Tasks <br /><br />Question 1. “Sometimes it is difficult to understand data if you do not know what the numbers represent. Provide short definitions of two words: sepal, and petal (be sure to cite your sources even if you paraphrase):”<br />Answer:<br />sepal: “one of the individual leaves or parts of the calyx of a flower. “ (Dictionary.com, 2017).<br /><br />petal: “one of the often colored segments of the corolla of a flower.” (Dictionary.com, 2017)<br />Reference<br />Dictionary.com, (2017). Definitions and synonyms. Retrieved from http://www.dictionary.com/<br />Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-33078474269118905832019-06-03T04:17:33.954-07:002019-06-03T04:17:33.954-07:00yes, indeed...
Thank you to visit my article:
MAT...yes, indeed...<br /><br />Thank you to visit my article:<br />MATH 1280 Introduction to Statistics – Assignment 2 <br />@<br />Flower sepal and petal, illustration only, credit to Medium<br />Part 1 - Answer for questions 1 to 4<br />“The file "flowers.csv" file contains information on measurements of the iris flowers.” “Create an R data frame by the name "flower.data" that contains the data in the file.”<br />“The following R code shows an example of how to round a vector of numbers to zero decimal places and then calculate some statistics using the rounded numbers.” <br />“You might need some of the calculations for this assignment, but you might not need others.” <br />“You would replace example$years with the name of the R object that you want to analyze (in other programming languages, you might call example$years a variable).” <br /><br /><br />“> x <- round(example$years, 0)”<br />“> freq <- table(x)” <br />“> rel.freq <- freq/sum(freq)”<br />“> cumsum(rel.freq)”<br /><br />“Cumulative Frequency Table for Petal Length"Tanza Erlambanghttps://www.blogger.com/profile/13033202053400016976noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-72095364230533306552019-05-31T22:15:24.561-07:002019-05-31T22:15:24.561-07:00Interesting informations :)Interesting informations :)Iwonahttps://www.blogger.com/profile/13833367703737810762noreply@blogger.comtag:blogger.com,1999:blog-7181971724615697511.post-52388245909154599952019-05-31T16:07:05.031-07:002019-05-31T16:07:05.031-07:00Math is a bit complex for me. I will stick with en...Math is a bit complex for me. I will stick with enjoying the flowers. :)Miss Val's Creationshttps://www.blogger.com/profile/11200441034267532187noreply@blogger.com