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Math 8 Data Test Review

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  • Use the trendline to predict how many chapter were covered if 160 pages were read.
    16 Chapters
  • Of those who prefer skating, what is the relative frequency of those who are female? Round to the nearest TENTH!
    78.6%
  • What is the relative frequency of females who said 'yes' in this data?
    25%
  • Use the trendline to predict how many pages were read if 8 chapters were read.
    80 pages
  • Write the equation of the trend line.
    y= x + 60 or y = 1x + 60
  • Of the males, what is the relative frequency of those who prefer bowling?
    60%
  • Describe the strength, direction, and shape of the data
    Strong, Negative, and Linear Correlation
  • Using the trend line, predict the score of a student who studies 10 minutes
    70
  • Describe the direction of the correlation in the context of the problem.
    As training time increases, the athlete's 100m time decreases.
  • Describe the strength, direction, and shape of the graph.
    Strong, negative, linear
  • Which scatter plot has a linear correlation?
    C
  • Which graph is nonlinear? 4, 5, 6, or 7
    7
  • Which graph has the strongest correlation? 4, 5, 6, or 7?
    6
  • Write the equation of the trend line.
    y=10x
  • Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?
    75%
  • Of those who were surveyed, what is the relative frequency of those who prefer dancing? Round to the nearest TENTH!
    15.4%
  • Describe the direction of the correlation in the context of the problem.
    As absences increase, test scores decrease.
  • Of those who said "Yes", what is the relative frequency of those who were female? Round your answer to the nearest TENTH!
    35.3%
  • Of the males, what is the relative frequency of those who said "No"? Round your answer to the nearest TENTH!
    21.4%
  • Which graph has no correlation? 4, 5, 6, or 7 ?
    5
  • Based on the trend line of this scatter plot, how much electricity would be consumed if the average daily temperature were 75 degrees? Round to the nearest whole number.
    40 kWh