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

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The accompanying data set contains three numerical variables, x1, x2, and x3.

a. For x1, how many of the observations are greater than 30?

b. Sort x1, x2, and then x3 all in ascending order. After the variables have been sorted, what is the first observation for x1, x2, and x3?

c. Sort x1 and x2 in descending order and x3 in ascending order. After the variables have been sorted, what is the first observation for x1, x2, and x3?

d. How many missing values are there in x1, x2, and x3?

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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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