Consider following the about statements infant mortality rate:

1. It is the probability of dying between birth and exactly 1 year of age, expressed per 10000 live births.

2. The infant mortality rate in the year 1950 was 189-6.

3. In the year 2019, the infant the Sample mortality rate was 30.

4. As per Registration System (SRS) Bulletin of Registrar General of India (RGI), the State with the highest infant mortality rate in the year 2019 was Uttar Pradesh.

Which of the above statements are correct?