Section: 3.1 -- problem 2
Compute the mean, median, and mode.
2,2,3,3,4,4,45,7,7,7,7,8,8,10,13,15
Median = 7 winter pack size
Mean = 109/176 = 6.5
Mode = 7 winter pack size
Mean:
o
add all numbers = 111
o
divide sum by 18 (111 ÷ 18) =
6.17
Median:
o
o
Find the mean of the two middle numbers (7 + 5 = 12 ÷ 2 =
6
)
7 pts
Section: 3.1 -- problem 4
21,21,22,22,22,22,23,23,23,23,24,24,24,25,25,25,25,25,25,25,26,26,26,26,27,27,28,28,2
8,29,29,29,29,29,30,31,31,32,33,37
21+21+22+22+22+22+23+23+23+23+24+24+24+25+25+25+25+25+25+25+26+26+26+
26+27+27+28+28+28+29+29+29+29+29+30+31+31+32+33+37=1050
25+26
= 25.5
2
Median is 25.5 years old
Mode =25
Mean =1050/40= 26.25
26.3
Compare the averages. Does one seem to represent the age of the pro football players
most accurately? Yes, the mode seems to represent the age of the pro football player most
accurately, because it is a whole number.
9.375 pts