There is an international tennis tournament at your local stadium and gemma has been selected to work as a ball girl.

out of 225 applicants, 1 5 were successful.

of the successful applicants, 20% couldn’t make all the training sessions and were discounted.

how many were selected to work at the tournament?

45 applicants were selected to work in the international tennis tournament at your local stadium, but just 36 (Gemma included) completed all the training sessions.

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Number of applicants to work in the international tennis tournament = 225

Number of successful applicants = 1/5 of 225

Number of successful applicants that couldn't make all the training sessions and were discounted = 20%

2. How many selected to work at the tournament?

For answering this question, we will make the following calculations:

Number of successful applicants = 1/5 of 225 (1/5 = 0.2)

Number of successful applicants = 225 * 0.2

Number of successful applicants = 45

Number of successful applicants that couldn't make all the training sessions and were discounted = 20% of 45

Number of successful applicants that couldn't make all the training sessions and were discounted = 0.2 * 45 = 9

45 applicants were selected to work in the international tennis tournament at your local stadium, but just 36 (Gemma included) completed all the training sessions.

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.

b. x + 1

step-by-step explanation:

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