Ma'am/ Sir pls answer what is asked below. Thank you

Ages of Accountants The average age of the accountants at Three Rivers Corp. is 26 years, with a standard deviation of 6 years; the average salary of the accountants is $31,000., with a standard deviation of $4000. Compare the variations of age and income. Time Spent Online Americans spend an average of 3 hours per day online. If the standard deviation is 32 minutes, nd the range in which at least 83.39% of the data will lie. Use Chebyshev's theorem. Source: wwcscmuedu Trials to Learn a Maze The average of the number of trials it took a sample of mice to learn to traverse a maze was 12. The standard deviation was 3. Using Chebyshev's theorem. nd the minimum percentage of data values that will fall in the range of 420 trials