Question

U

Isaiah collects data from two different companies, each with four
employees. The results of the study, based on each worker’s age and
salary, are listed in the tables below.
Company 1 Company 2
Worker’s Salary Worker’s Salary
Age in in Age in in
Years Dollars Years Dollars
25 30,000 25 29,000
27 32,000 28 35,500
28 35,000 29 37,000
33 38,000 31 65,000
Which statement is true about these data?
(1) The median salaries in both companies are greater than $37,000.
(2) The mean salary in company 1 is greater than the mean salary in
company 2.
(3) The salary range in company 2 is greater than the salary range in
company 1.
(4) The mean age of workers at company 1 is greater than the mean
age of workers at company 2.

Answer 1

True. 3) The salary range in company 2 is greater than the salary range in company 1.

Range is computed by subtracting the lowest number from the highest number.

Company Highest Lowest Range
1 38,000 30,000 8,000
2 65,000 29,000 36,000

Company Median Mean Salary Mean Age
1 33,500 33,750 28.25
2 36,250 41,625 28.25