A Statistics Instructor Wishes to Know the Average Age (In

question 39

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.All 200 names are put in a hat and 25 names are then chosen at random (without replacement) .This sampling method is called a

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

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Definitions:

Compounded Semi-Annually

Interest calculation method where interest is added to the principal sum twice a year, leading to interest earning interest over time.

Annual Scholarship

A financial award given to students on a yearly basis to support their education.

Investment

is the allocation of resources, usually money, with the expectation of generating an income or profit.

Principle

The original sum of money borrowed in a loan, or the amount of the investment before interest.