Classify the following situations it if requires Descriptive or Inferential statistics.

1. The problem solving abilities of students were interpreted by classifying their average or scores as excellent, very good, good, fair or poor.
2. A statistical table is constructed for the purpose of presenting the number of patients affected by COVID-19 in the different provinces.
3. The significant difference between the modular and the online class of delivery in the critical thinking skills of students.
4. Several food industry were surveyed in a particular city for the purpose of estimating the industry wide losses due to COVID-19 pandemic.
5. The effect of using CAI (Computer-Assisted Instruction) in the performance of Statistics class.