The two formulas that will return a value of true if a month has sales greater than $50,000, otherwise the formula must return a value of false, are:
B). IIF(SUM([Sales]) > 50000, TRUE, FALSE) D. [Sales] > 50000
The IIF function is a logical function that returns one value if a condition is true, and another value if the condition is false. In this case, the condition is SUM([Sales]) > 50000, which means that the sum of sales for a month is greater than $50,000. The function will return TRUE if the condition is true, and FALSE if the condition is false.
The comparison operator > is a logical operator that returns TRUE if the left operand is greater than the right operand, and FALSE otherwise. In this case, the operands are [Sales] and 50000, which means that the sales for a month are greater than $50,000. The operator will return TRUE if the sales are greater than $50,000, and FALSE otherwise.
The other options are not correct for this scenario. The IN function is a logical function that returns TRUE if a value is in a set of values, and FALSE otherwise. In this case, the value is SUM([Sales]), which is not in the set of values (50000). The function will always return FALSE. The MAX function is an aggregation function that returns the maximum value in a field or expression. In this case, the field or expression is [Sales], 50000, which is not valid syntax. The function will return an error. References:
https://help.tableau.com/current/pro/desktop/en-us/functions_functions_logical.htm#IIF
https://help.tableau.com/current/pro/desktop/en-us/operators.htm
https://help.tableau.com/current/pro/desktop/en-us/functions_functions_aggregate.htm#MAX