Question

Conference A and conference B each have 10 football teams. The table shows the number of football games that each team in the two college conferences won last year.
Conference A :10 9 11 8 10 12 2 7 8 0
Conference B:12 10 8 11 3 12 6 7 4 3

Select from the drop-down menus to correctly complete each statement.
The mean number of wins for teams from the two conferences is ___________.
The range in wins is _______________.

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Answer 1

Answer:

The mean is:  about the same

The range is:  greater for conference A than for conference B

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Answer 2

Answer with explanation:

1.Mean of a Data set

   $=\frac{\text{Sum of all the observation}}{\text{total number of observation}}$

$=\frac{10+9+11+8+10+12+2+7+8+0+12+10+8+11+3+12+6+7+4+3}{20}\\\\=\frac{153}{20}\\\\=7.65$

2. Range = Maximum value in two conferences - Minimum value in two conference

= 12 - 0

=12

The mean number of wins for teams from the two conferences is 7.65.

The range in wins is  12.