Question

1. The probability distribution for the number of hospital employees, in a sample of 25, who have antibiotic-resistance bacteria on the screen of their personal cell phones can be modeled by a Binomial Distribution.

True

False

2.

True or False, the scenario described below can be modeled by a Binomial Distribution.

You interview 30 University of Cincinnati students drinking coffee at Langsam Library and ask if they drink only decaffeinated coffee.

True

False

Answer 1

1)True.The no of trials here i.e the number of employees stays fixed.Antibiotic resistant bacteria being on cellphone can be regarded a success event and not being on cellphone as a failure.Assuming that outcome for each employee is independent of the other the probability distribution can be modeled as a Binomial one.

2)True.The problem can be considered as a Yes Or No question.Yes corresponds to success and No to failure.Since the outcome of drinking decaffeinated coffee for one student is independent of the other the distribution can be considered Binomial.