# Answer to Question #7775 in Discrete Mathematics for Philip

Question #7775

The nine employes of the Ellington Dance Studio each earn $600 per week. A new employee is hired who earns $1500 per week.

Describe how the new employee's earnings will affect the mean and median earnings of Ellington Studio's employees. Use mathematics to support your answer

Describe how the new employee's earnings will affect the mean and median earnings of Ellington Studio's employees. Use mathematics to support your answer

Expert's answer

Ex- mean& for nine employes =600- 'cause all receive so. Median is found& by the formula (600+600)/2 = 600 as well.

Ex afterwise is 600*9/10+1500*1/10=(5400+1500)/10=690- the new mean

9/10 –probability to choose person with salary 600

1/10 –probability to choose person with salary 1500

Median will be the same- by formula (600+600)/2

Ex afterwise is 600*9/10+1500*1/10=(5400+1500)/10=690- the new mean

9/10 –probability to choose person with salary 600

1/10 –probability to choose person with salary 1500

Median will be the same- by formula (600+600)/2

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