Question 4 A colleague has found the following R code and needs your help to make sense of it. something function(x,B) { y rep (NA,B) for (i in 1:B) { y[i] mean (sample(x,replace-TRUE)) } return(quantile(y,c (0.025,0.975))) a) Explain what it is that the function something returns. b) What is the parameter x in the above code? c) What is the variable y in the above code? d) Explain what the parameter B is, what value it should be set to, and why.

Question 4 A colleague has found the following R code and needs your help to make sense of it. something function(x,B) { y rep (NA,B) for (i in 1:B) { y[i] mean (sample(x,replace-TRUE)) } return(quantile(y,c (0.025,0.975))) a) Explain what it is that the function something returns. b) What is the parameter x in the above code? c) What is the variable y in the above code? d) Explain what the parameter B is, what value it should be set to, and why.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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