Challenge No. 21: A right angle triangle is that for whom following property is satisfied.
Solved using: Python in Excel.
Missing Values
Handling and filling missing values in datasets using different strategies.
Determining Missing Fields
Challenge No. 74: Customer information including Name, Family, Phone, and Website is provided in the question table.
Solved using:Excel (ARRAYTOTEXT, FILTER, HSTACK), Power Query (List.Difference, List.Distinct, Text.Combine), Python, and R.
Missing Values! Part 2
Challenge No. 62: The question table presents the actual progress of 3 projects at the end of each month, but some values are missing.
Solved using:Excel (DATE, DROP, IF), Power Query (Date.Month), Python, and R.
Missing Values! Part 1
Challenge No. 54: The table presents the actual progress of three projects at the end of each month, but some values are missing.
Solved using:Excel (DATE, DROP, EOMONTH), Power Query (List.Transform, Table.Group, Table.TransformColumnTypes), Python, and R.
Find Missing Numbers!
Challenge No. 52: In the Question Table, numbers ranging from 1001 to 1018 are listed.
Solved using:DAX, Excel (COUNTIF, FILTER, IF), Power Query (List.Difference), Python, Python in Excel, R, SQL, and VBA.
Remove Outlier Questionnaires!
Challenge No. 33: Questionnaires are a common method for collecting data, but they are susceptible to noise from respondents who fill them out randomly.
Solved using:Excel, Power Query, Python, and R.