The accompanying data set contains four variables, x 1 , x 2 , x 3 , and

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The accompanying data set contains four variables, x1, x2, x3, and x4. There are missing values in the data set.

a. Subset the data set to include only x1, x2, and x3.

b. Which variables have missing values?

c. Which observations have missing values?

d. How many missing values are in the data set?

e. Handle the missing values using the omission strategy. How many observations remain in the data set and have complete cases?

f. Split the data set based on the categories of x2. How many observations are in each subset?

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Business Analytics Communicating With Numbers

ISBN: 9781260785005

1st Edition

Authors: Sanjiv Jaggia, Alison Kelly, Kevin Lertwachara, Leida Chen

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