A Statistics Instructor Wishes to Know the Average Age (In

question 45

Multiple Choice

A Statistics instructor wishes to know the average age (in month) of his 200 students.He is too lazy to sample all 200 students so he decides to choose 20 students at random from the class and ask them for their age.In the class,students are sitting in twenty rows each of size ten.He randomly selects two rows of students and samples all students in those rows.This sampling method is called a

• A)Cluster Sample.
• B)Simple Random Sample.
• C)Voluntary Sample.
• D)Stratified Random Sample.
• E)Systematic Random Sample.

---

Definitions:

Oppression

The exercise of authority or power in a burdensome, cruel, or unjust manner.

Voluntary Simplicity

A lifestyle choice aimed at reducing one's use of and reliance on consumer products and services, in favour of more sustainable and self-sufficient living.

Environmentally Ethical

Acting with consideration for the environmental impact of one's decisions and actions, aiming to reduce harm to the natural world.

Biodiversity

The variety and variability of life forms within a given ecosystem, region, or on the entire Earth.