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Statistics

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  The ages of the six members of a cycling club are 17, 13, 16, 13, 17, and 14. What is the mean of these six ages?

  
  

  14

  15

  16

  18

  
  
  

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• 

  Marion scored 85, 78, 74, 75, 93, and 95 on six tests. What is the range of these six scores?

  
  

  10

  21

  82

  83

  
  
  

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  Amy is taking a mathematics course this year. She has taken four tests and has one more to complete the course. Her scores are 85, 94, 89, and 97. In order to earn an A in the course, she must end up with at least a 90 average. Which of the following can Amy use to determine the score she must make on the fifth test to earn an A?

  
  

  

  

  

  

  
  
  

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  Joel made a graph for a science project to show the growth of his pet turtle over a
  period of 9 weeks. At the end of week 1 his turtle was 5 inches long. The final
  measurement after week 9 was 6 1/2 inches long.

  What was the turtle’s average growth rate in inches per week?

  
  

  1/8

  2/9

  3/16

  1/6

  
  
  

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  Jet sampled 12 people for a television-watching survey. One of the questions asked for the person's age. The ages were: 6, 7, 7, 7, 10, 12, 15, 21, 40, 55, 70, 87 Which of these measures is GREATEST for this data set?

  
  

  Mean

  Median

  Range

  Mode

  
  
  

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  Sheila collects the statistics about baseball games played by the local Youth League team. Which statistic shows a non-linear rate of increase over time?

  
  

  number of wins

  average number of spectators per game

  average number of sodas sold per game

  average number of hot dogs sold per game

  
  
  

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