Study

Final Stats Review

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  • Estimate the mean
    18
  • Anna walks an average of 5 miles a day with a standard deviation of 2. What percentage does she walk over 8 miles?
    6.6 percent
  • How many trees are 250-300 cm tall?
    50
  • Find the standard deviation: 4,4,5,6,7,8,10
    2.21
  • The mean weight is 10 pounds with a standard deviation of 2. What percentage weigh 8-12 pounds?
    68 percent
  • The mean of the data is 30 with a standard deviation of 8. Find the z score of the value 20.
    -1.25
  • The mean weight is 10 pounds with a standard deviation of 2. What percentage weigh 10-12 pounds?
    34 percent
  • Anna walks an average of 5 miles a day with a standard deviation of 2. What percentage does she walk under 4 miles?
    30.85 percent
  • Find the mean: 4,4,5,6,7,8,10
    6.2857142857143
  • Find the median: 4,4,5,6,7,8,10
    6
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