1. The following students are studying statistics subject Section 1 Section 2 Male 25 18 Female 15 32 Total 40 50 90 Select any 20 students by using a) Random sample method b) Systematic sample method c) Stratified sample method 2. The following staff are working in a company Male 65 Female 35 Total 100 Select any 20 students by using a) Random sample method b) Systematic sample method c) Stratified sample method