The correct statement is:
statements 1 and 2
Explanation:
1. Calculate the mean age for each company:
- Company A: (34+28+36+27+45+44+30+42+41+40+50+48+52+45+39+38) / 16 = 39.25
- Company B: (29+32+48+51+49+37+33+35+36+40+45+48+43+43+44+48) / 16 = 41
The mean age of employees from Company A (39.25) is lower than the mean age of employees from Company B (41), so statement 1 is false.
2. Find the median age for each company:
- Company A: In ascending order: 27, 28, 30, 34, 36, 38, 39, 40, 41, 42, 44, 45, 45, 48, 50, 52. The median age is 40.
- Company B: In ascending order: 29, 32, 33, 35, 36, 37, 40, 43, 43, 44, 45, 48, 48, 49, 51. The median age is 43.
The median age of employees from Company A (40) is lower than the median age of employees from Company B (43), so statement 2 is true.
3. Calculate the range of ages for each company:
- Company A: 52 - 27 = 25
- Company B: 51 - 29 = 22
The range of ages of employees from Company A (25) is higher than the range of ages of employees from Company B (22), so statement 3 is true.
Therefore, the correct answer is statements 1 and 2.
The ages of randomly selected employees at two companies are recorded. Their ages are as follows.
Company A: 34, 28, 36, 27, 45, 44, 30, 42, 41, 40, 50, 48, 52, 45, 39, 38
Company B: 29, 32, 48, 51, 49, 37, 33, 35, 36, 40, 45, 48, 43, 43, 44, 48
Which of the following statements is true?
1. The mean age of employees from Company A is higher than the mean age of employees from Company B.
2. The median age of employees from Company A is lower than the median age of employees from Company B.
3. The range of ages of employees from Company A is higher than the range of ages of employees from Company B.
(1 point)
• statements 2 and 3
• statements 1, 2, and 3
statements 1 and 3
statements 1 and 2
1 answer