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MATH 1131 3.0 Winter 2019 Assignment 1 (Due Date: Jan 17, 2019) If the question specifies to solve the problem by hand or by computer, please follow the instruction. If unspecified, you can either solve the problem by hand or by computer Question 1: At the University of California Machine Learning website 150 Irises. (https://archive.ics.uci.edu/ml/datasets/Iris), there is a data set for the measurements of a. Use any software and obtain the histogram for the sepal length for all the 150 irises. b. How would you describe the overall shape of the 150 measurements on sepal length? c. Report the 5-number summaries for the Petal length for the species of Setosa. (Note d. Use any software and report the sample mean and sample standard deviation for the e. Based on the given data, what proportion of the petal lengths of versicolor falls within Do you suspect any outlying data or pattern in this data set? Dont use softuware. Use the method discussed in class) mean petal length for versicolor. 2 standard deviation of the mean?

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By using R software

Untitled- R Editor d-iris attach (d) spl-dsSepal.Jength spl hist (spi , main-histogram of plot (d$Sepal.Length) summary (d)R Graphies Device 2 (ACTİVİİ histogram of sepal length 2 8 5 6 spli ti ,WR Graphics: Device 2 (ACTIVE) 므 behaviour of sepal length (D เก 100 150 50 IndexR R Console > d-iris summary (d) ### answe r of (c) to (e) Sepal.Length sepa1. WidthPetal.Length Petal.Width Min.4.300 Min2.000 Min1.000 Min. :0.100 1st-Qu·15.100 1st Qu . :2.800 1st Qu . :1,600 1st Qu. :0.300 800 Median :3.000 Median :4.350 Median :1.300 edian5. Mean- a: 5.843 Mean :-ㄧ :3. 057- Mean -:3.758 Mean :1.199 3rd Qu. 6.400 3rd Qu. 3.300 3rd Qu. :5.100 3rd Qu.:1.800 Max 王4,400- -Max.--- :6.900. :2.500 :7.900 Species : 50 versicolor:50 virginica :50 dan Max. Max . ㄧ - Setosa

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