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Suppose that in a school with 150 total students, there are 10 students who have the flu. Administrators take an
SRS of 20 students to test for the flu. Let X = the number of students in the sample who test positive for the
flu.
Is X a binomial variable? Why or why not?

Respuesta :

Answer:

The trials are not independent, so

X is not a binomial variable.

Step-by-step explanation:

The variable X is not a binomial variable. The reason for this is X is not independent.

What is a binomial variable?

A binomial variable is a variable that determines the frequency that an event would happen  in a fixed number of trials.  

The conditions for a binomial variable include:

  • The observation fall into either a success or failure category with an equal chance of happening.
  • There are a fixed number of observations
  • The observations are independent.

To learn more about binomial random variable, please check: https://brainly.com/question/25469830

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