Question

the ages of the members of four teams are summarized below. answer the questions about them. team a: the range of ages is 21 and the mean age is 42. team b: the range of ages is 14 and the mean age is 37. team c: the range of ages is 19 and the mean age is 33. team d: the range of ages is 22 and the mean age is 39. (a) based on the information above, which team has the oldest members on average? \bigcirc team a \bigcirc team b \bigcirc team c \bigcirc team d (b) based on the information above, which teams ages have the least variability? \bigcirc team a \bigcirc team b \bigcirc team c \bigcirc team d

Explanation:

(a) The mean age represents the average age of a team's members. We compare the mean ages of all teams: Team A (42), Team B (37), Team C (33), Team D (39). The highest mean indicates the oldest average age.
(b) Range measures age variability; a smaller range means less variability. We compare the ranges: Team A (21), Team B (14), Team C (19), Team D (22). The smallest range shows the least variability.

Answer:

(a) Team A
(b) Team B