3.3 Measures Of Spread

6 Questions | Total Attempts: 228

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3.3 Measures Of Spread

Questions and Answers
  • 1. 
    Here are the number of points scored by Crosby in each of his NHL seasons: 37, 56, 66, 72, 102, 103, 109, 120 Calculate the Interquartile range 
  • 2. 
    Here are the number of points scored by Crosby in each of his NHL seasons: 37, 56, 66, 72, 102, 103, 109, 120 Calculate the standard deviation (round to 1 decimal place)
  • 3. 
    The number of power play goals scored by a hockey team in each game of a season are recorded below in a frequency table.  Power Play Goals 0 1 2 3 4 Frequency 27 33 16 5 1 Calculate the standard deviation of the number of power play goals scored in a game. Round your answer to 2 decimal places.
  • 4. 
    The mean of a set of 4 number is 19. What would the mean be if each of the numbers was decreased by 11?
    • A. 

      8

    • B. 

      11

    • C. 

      19

    • D. 

      30

  • 5. 
    The mean of a set of 5 numbers is 26. What would the mean be if one of the numbers was increased by 10?
    • A. 

      10

    • B. 

      26

    • C. 

      28

    • D. 

      36

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