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There are 100 employees in a firm. Their mean salary is $8000 and the standard deviation is $1000. If the salary of each employee is

There are 100 employees in a firm. Their mean salary is $8000 and the standard deviation is $1000. If the salary of each employee is increased by $160, find the new mean and the new standard deviation of the salaries.

a.

8000, 1160

b.

8160, 1000

c.

None of the given choices is correct

d.

8160, 1160

e.

8000, 1000

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