Assume that no additional product risks have been identified during the first week of test...

Since R3 is the only risk for which all test cases have passed, the risk has been reduced by 20%

The test execution status table indicates that the risk has been reduced by 56%

The residual risk level can’t be determined, because it requires that all the test cases have been executed

The test execution table doesn’t give an indication of the risk level of the open defects and the test cases that failed or are not run yet