A University Has 10,000 Students of Which 45% Are Male

question 51

Multiple Choice

A university has 10,000 students of which 45% are male and 55% are female. If a class of 30 students is chosen at random from the university population, find the mean and variance of the number of male students.

• A) Mean = 16.5, Variance = 2.7
• B) Mean = 13.5, Variance = 2.7
• C) Mean = 16.5, Variance = 7.4
• D) Mean = 13.5, Variance = 7.4

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Definitions:

Compressed Workweek

An alternative work schedule allowing employees to work longer hours on fewer days, often resulting in a three-day weekend.

Telecommuting

It involves working from a remote location outside of a traditional office environment, often from home, using technology to stay connected.

Flexible Working Hours

An arrangement that allows employees to vary their arrival and departure times, or choose their working hours, to accommodate personal needs and improve work-life balance.

Compressed Workweek

A work schedule that allows an employee to work a full-time job in fewer than the standard five days.