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The end-of-year English scores for 10 students in an English class were compared over 2 years. The score for 2015
and for the same students in 2016 are as shown.
2015 30 31 35 37 39 41 41 42 43 46
2016 22 26 27 28 30 31 33 34 36 39
How does the mean score in 2015 compare to the mean score in 2016?
The mean for 2015 is
The mean for 2016 is
Therefore, the mean score in 2015 is
higher than 2016

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.