There are four odd days in a week.
According to the provided reference, a standard week consists of seven days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday.
Based on the reference, the odd days are:
- Monday
- Wednesday
- Friday
- Sunday
Therefore, counting these days, we find that there are four odd days in a week. The other days: Tuesday, Thursday, and Saturday, are considered the even days within the context of this classification.
