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It is of interest to employers to know how many dependents their employees have since this has the effect on how much they may expect to pay out in health care and other benefits. A cer­tain company uses many young people with few dependents. The distribution of number of dependents is given below. No employee has more than five dependents.

number of dependents

percentage

0

45%

1

27%

2

13%

3

7%

4

4%

5

 

  1. What percentage of employees has five de­pendents?
  2. Of all employees that have at least 1 de­pendent, what percentage has more than one?
  3. What is the most common number of the de­pendents which employees have?
  4. If an employee is selected at random, determine the probability that the person has at least three dependents?
  5. Determine the median number of dependents?
  6. Determine the mean number of dependents?
  7. Determine the standard deviation of number of dependents?

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918617

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