The Dot plot shows the salaries for the employees that two small companies before a new company head is hired on each company select all the statements that must be true A. the mean and the medium values of salary shown in the Dot plot for company 2 are the same.

B. the standard deviation of salary is shown in the Dot plot for company 2 is greater than the standard deviation of salaries at company 1.

C. the median values of salary shown in the dot plots for the two companies are about the same.

D. the median value of salaries at company one will remain unchanged after a company head is hired to have a salary of $500,000 (Five Hundred thousand dollars)

E. the new company head with a salary of $500,000 will affect the mean value for salaries accompany to more than the median value for salaries at company 2 more then the median value for salaries at company 2.