Mathematics > EXAM > MATH 1280 INTRODUCTION TO STATISTICS - Assignment Unit 2 (GRADED A) University of the People (All)

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MATH 1280 INTRODUCTION TO STATISTICS - Assignment Unit 2 (GRADED A) University of the People

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The file "flowers.csv" file contains information on measurements of the iris flowers. Create an Rdata frame by the name "flower.data" that contains the data in the file.The following R code shows an e ... xample of how to round a vector of numbers to zero decimalplaces and then calculate some statistics using the rounded numbers.You might need some ofthe calculations for this assignment, but you might not need others. You would replaceexample$years with the name of the R object that you want to analyze (in other programminglanguages, you might call example$years a variable).> x <- round(example$years, 0)> freq <- table(x)> rel.freq <- freq/sum(freq)> cumsum(rel.freq)Cumulative Frequency Table for Petal LengthUse the following table to answer tasks 2-4.Value: 1234567Cumulative Relative Frequency:.16.33.35.58.81.971.00Tasks MATH 1280: INTRODUCTION TO STATISTICS - Assignment Unit 23 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 youparaphrase):sepal: The sepals are usually greenish and often resemble reduced leaves ((The Editors ofEncyclopaedia Britannica, 2020))petal: the petals are usually colorful and showy ((The Editors of Encyclopaedia Britannica,2020)) 2. There is a cumulative relative frequency table printed above for petal lengths (using roundedvalues for petal length).Below the number 3 in that table is the number .35.What does .35represent? (multiple choice) -ea. Three of the flowers had petal length of 0.35.b. There were 0.35 observations that had petal length of 3 (after rounding the petal lengths).c. Of all the flowers measured in this sample 35% had a petal length of 3 (after rounding thepetal lengths).d. Of all the flowers measured in this sample 35% had a petal length of 3 or less (after roundingthe petal lengths).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). [Show More]

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