Create the venn diagram, Applied Statistics

Create the Venn diagram:

A   - you work for an insurance company.  80% of your company's staff is sales force and 70% of your company's sales is force is male. in your company as whole , 60 % of the staff is male .

1-Create the Venn diagram for this data (unite draw two circles, on represent male and the other represent on the sale force.

2- what portion of your company's staff is male and on the sales force?

3- What portion of your company's staff is female and on the sales forces?

 

B About 55% of emergency room visits are unnecessary, assuming each emergency room visit is independent.  (Hint: first define the random variable x then write the objective of each question in terms of x.

1 if you randomly select 15 patients from those visiting the emergency department what is the chance that all of them need tobe in the emergence.

2 What is expected number from the 15 randomly selected patients, who do not need to be in the emergency room and what is the standard deviation of the number?

3 Suppose the distribution of unnecessary emergency room visits can be approximated by normal distribution what is the probability that at least two of them need be in the emergency room?

Posted Date: 2/14/2013 2:01:21 AM | Location : United States







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