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MathematicsMathematics
26 June, 00:31

Five members of the football team and five members of the track team ran the 100-meter dash. Their times are listed in the table below:

Football Track

12.1 12.2

13.7 11.2

12.1 11.3

11.7 12.1

14.5 13.2

What is the difference of the means for the two groups?

+5
Answers (1)
  1. 26 June, 01:48
    0
    Mean (average) of the football team:

    (12.1+13.7+12.1+11.7+14.5) / 5 = 12.82

    Mean (average) of the track team:

    (12.2+11.2+11.3+12.1+13.2) / 5 = 12

    Subtract: 12.82-12 = 0.82 s

    So the difference of the means for the two groups is 0.82 seconds.
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Home » Mathematics » Five members of the football team and five members of the track team ran the 100-meter dash. Their times are listed in the table below: Football Track 12.1 12.2 13.7 11.2 12.1 11.3 11.7 12.1 14.5 13.
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