Evaluate Quiz 4_ DATA1001 Foundations of Data Science

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University of Technology Sydney *

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SDA

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Statistics

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Apr 3, 2024

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30/03/2024, 20:17 Evaluate Quiz 4: DATA1001 Foundations of Data Science https://canvas.sydney.edu.au/courses/48435/quizzes/215392 1/2 Evaluate Quiz 4 Due Mar 19, 2023 at 23:59 Points 5 Questions 5 Available Mar 13, 2023 at 9:00 - Mar 19, 2023 at 23:59 Time Limit 30 Minutes This quiz was locked Mar 19, 2023 at 23:59. Attempt History Attempt Time Score LATEST Attempt 1 9 minutes 2 out of 5 Score for this quiz: 2 out of 5 Submitted Mar 19, 2023 at 18:23 This attempt took 9 minutes. Question 1 0 / 1 pts You Answered lower SES areas Correct Answer city areas rural areas Question 2 1 / 1 pts Correct! pnorm(0,4,5) Great work! pnorm(0,5,4) qnorm(0,5,4) Question 3 1 / 1 pts Sydney Data Stories: According to Kylie Moulds, in what area do more young swimmers drop out of elite swimming? What code would work out the area of a General Normal curve, with mean = 4 and SD = 5, from 0 down. A Normal curve has mean = 10 and SD = 4.
30/03/2024, 20:17 Evaluate Quiz 4: DATA1001 Foundations of Data Science https://canvas.sydney.edu.au/courses/48435/quizzes/215392 2/2 Correct! qnorm(0.2,10,4) Great work! pnorm(0.2,10,4) Question 4 0 / 1 pts 1-pnorm(1.2,3,4) You Answered 1-pnorm(1.2,3,4,lower.tail=F) Correct Answer pnorm(1.2,3,2,lower.tail=F) pnorm(1.2,3,2) qnorm(1.2,3,4) Question 5 0 / 1 pts 39.7% 17.9% Correct Answer 21.7% You Answered 42.1% Quiz Score: 2 out of 5 What code would calculate the 20% percentile (threshold))? Which command will calculate P(X>1.2) when X N(3,4)? Create a normal model for the `Petal.Width` variable from the `iris` data set and use this model to answer the following question. What percentage of the sample (to the nearest percent) would you expect to have a petal width between 0.5 and 1.
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