Question

the ages of the members of four teams are summarized below. answer the questions about them. team a: the range of ages is 11 and the mean age is 31. team b: the range of ages is 19 and the mean age is 32. team c: the range of ages is 16 and the mean age is 29. team d: the range of ages is 15 and the mean age is 36. (a) based on the information above, which team’s ages have the least variability? team a team b team c team d (b) based on the information above, which team has the oldest members on average? team a team b team c team d

Explanation:

Step1: Analyze variability via range

Range measures data spread; smaller range = less variability.
Compare ranges: Team A (11), Team B (19), Team C (16), Team D (15).

Step2: Identify smallest range

11 is the smallest range, belonging to Team A.

Step3: Analyze average age via mean

Mean represents average age; higher mean = older average.
Compare means: Team A (31), Team B (32), Team C (29), Team D (36).

Step4: Identify highest mean

36 is the highest mean, belonging to Team D.

Answer:

(a) Team A
(b) Team D