A dataset has 1000 records and 30 variables with 5% of the values missing, spread randomly throughout the records and variables. an analyst decides to remove records that have missing values. about how many records would you expect would be removed

Question

Mathematics

Valenzuela

7 January, 06:36

A dataset has 1000 records and 30 variables with 5% of the values missing, spread randomly throughout the records and variables. an analyst decides to remove records that have missing values. about how many records would you expect would be removed

+2

Answers (1)

Know the Answer?

Johnathon Callahan · Answer 1

The chance that a record would not have any missing variable is (1 - 0.5) ^50,=.077. So out of a 1000 records, only 77 are likely to have all variables, which means we can expect about 923 records to be removed