Final answer:
The correct formula to use is =IF(H1<=0.3, Low, IF(H1<=0.6, Medium, High)).
Step-by-step explanation:
The correct formula to use in this case is option b) =IF(H1<=0.3, Low, IF(H1<=0.6, Medium, High)).
This formula uses the IF function to check the value in cell H1. If the value is less than or equal to 0.3, it returns 'Low'. If it is greater than 0.3 but less than or equal to 0.6, it returns 'Medium'. And if it is greater than 0.6, it returns 'High'.
For example, if the value in cell H1 is 0.25, the formula will return 'Low'. If the value is 0.4, the formula will return 'Medium'. And if the value is 0.8, the formula will return 'High'.