Which of the following statements best describes the difference between a health maintenance organization (HMO) and a preferred provider organization (PPO)?
a.
An HMO is paid a monthly premium for ongoing services while a PPO collects no money until after services are rendered.
b.
An HMO allows the insured individual to choose from a list of providers while a PPO assigns the insured individual the provider nearest his or her residence.
c.
An HMO requires the insured individual to go to a provider within their organization while a PPO allows the insured individual the option to receive care from a non-preferred provider at a higher cost.
d.
An HMO is usually paid for by the insured individual’s employer while a PPO usually requires the insured individual to pay a co-pay or deductible for services.

ad = ae + ed = y + 7

similar triangles therefor

ac/ab = ad/ae

6/4 = (y + 7) / y

cross multiply

6y = 4(y + 7)

6y = 4y + 28

2y = 28

y = 14

step-by-step explanation:

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

d. vertex

step-by-step explanation: