Answer:
[tex]the \: mean \: = \frac{481}{30} [/tex]
[tex]the \: median \: = 15.5[/tex]
[tex]the \: mode \: = 10.5[/tex]
Step-by-step explanation:
The mean :
28.5 × 1 + 26.5 × 3 + 24.5 × 3 + 22.5 × 3 + 20.5 × 6 + 18.5 × 3 + 16.5 × 8 + 14.5 × 6 + 12.5 × 10 + 10.5 × 14
_______________________
1+3+3+3+6+6+8+6+10+14
[tex] = \frac{974}{60} [/tex]
[tex] = \frac{487}{30} [/tex]
The median :
60 ÷ 2 = 30 the median is in 30~31
(16.5 + 14.5) ÷ 2 = 15.5
The mode :
10-11 have 14
the mode is 10.5
hope it helps!
