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Author Question: Using the data in the above table, if income is on the x-axis and the amount spent on restaurant ... (Read 24 times)

sc00by25

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Using the data in the above table, if income is on the x-axis and the amount spent on restaurant meals is on the y-axis, the slope of the straight line graph equals
 
  A) 0.2.
  B) 0.4.
  C) 0.5.
  D) 2.5.

Question 2

The following table displays the marks obtained by three students on an economics test.
 
  Student Marks Obtained (out of 100)
  Mary 78
  Charles 83
  Tony 65
 
  a) Calculate the mean marks obtained by the three students.
  b) Suppose one of the scores was reported incorrectly. Charles scored 38 instead of 83. How will the mean change if the correction is incorporated?
  c) How does the amount of data used affect the accuracy of a model?


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johnharpe

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sc00by25

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Reply 2 on: Jun 29, 2018
Excellent


patma1981

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Reply 3 on: Yesterday
:D TYSM

 

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