Final answer:
The calculated result for the EXCEL formula =IF(A3>=50,,) when cell A3 contains the value 50 is blank.
Step-by-step explanation:
In EXCEL, the formula =IF(A3>=50,,) checks if the value in cell A3 is greater than or equal to 50. If the condition is true, the formula will return the result specified after the second comma. In this case, since there is no value specified after the second comma, the calculated result will be blank.