Answer:
2 errors per minute OR 1/30 errors per second
Explanation:
Error Rate = (number of errors) / time
Definition:
Error Rate is the number of errors made per unit time.
So, Clifford commits two (02) errors in one (01) minute.
Therefore,
his error rate is two errors per minute i.e. 2 per minute
OR
2/60 approximately 1/30 errors per second.