The ages of the members of four teams are summarized below. Answer the questions about them.
Team A: The range of ages is
20
and the mean age is
30
.
Team B: The range of ages is
24
and the mean age is
21
.
Team C: The range of ages is
15
and the mean age is
22
.
Team D: The range of ages is
19
and the mean age is
26
.
(a) Based on the information above, which team has the oldest members on average?
Team A
Team B
Team C
Team D
(b) Based on the information above, which team's ages have the most variability?
Team A
Team B
Team C
Team D
(a) Based on the information above, Team A has the oldest members on average because their mean age is 30, which is higher than the mean ages of the other teams.
(b) Based on the information above, Team A has the most variability in ages because their range is 20, which is higher than the ranges of the other teams.
(a) Based on the information above, Team A has the oldest members on average.
(b) Based on the information above, Team A has the most variability in ages.