Q2) part 1 -Several types of correlation coefficients exist. Go to the help of the cor() function and find which correlation coefficient is calculated by default. -Add the appropriate argument to the cor() function in the previous command so that the Spearman correlation is calculated instead. part 2 -What is the maximum value of weight in the entire dataset? -How many missing values are there for age? -What is the mean value for BMIpre for the two surgical techniques (variable surgery)? -What is the Pearson correlation between the BMI before the operation (BMIpre) and the BMI after the operation (BMIpost)?

Q2) part 1 -Several types of correlation coefficients exist. Go to the help of the cor() function and find which correlation coefficient is calculated by default. -Add the appropriate argument to the cor() function in the previous command so that the Spearman correlation is calculated instead. part 2 -What is the maximum value of weight in the entire dataset? -How many missing values are there for age? -What is the mean value for BMIpre for the two surgical techniques (variable surgery)? -What is the Pearson correlation between the BMI before the operation (BMIpre) and the BMI after the operation (BMIpost)?

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter10: Selected Single-row Functions

Section: Chapter Questions

Problem 5RQ

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