With reference to the tribal population and development initiatives in Andhra Pradesh, consider the following statements:

1. According to Census 2011, the tribal population of Andhra Pradesh constitutes 4.53% of the total population of the state.
2. The literacy rate among Scheduled Tribes (ST) in Andhra Pradesh is 48.83%.
3. The government’s development focus includes education, health, skill development, and social infrastructure for tribal areas.
Which of the statements given above is/are correct ?