Use the Normal Approximation to the Binomial Distribution to Answer

question 154

Multiple Choice

Use the normal approximation to the binomial distribution to answer this question. Fifteen percent of all students at a large university are absent on Mondays. If a random sample of 12 names is called on a Monday, what is the probability that four students are absent?

• A)0.0683
• B)0.0213
• C)0.0021
• D)0.1329

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Definitions:

Inverse Function

A function that reverses the operation of a given function, such that the composition of the two yields the original input.

Function

A framework involving a set of inputs and a roster of potential outputs, with the stipulation that each input is corresponded with only one output.

Composition

The combining of distinct parts or elements to form a whole, especially in mathematics where functions are combined.

Function

A mathematical relationship where each input has a single output, often expressed as f(x).