Answers edited by Miles A.

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• How do you differentiate #y = x^2 sinx#?
  
• How do you find the z-score for an IQ test score of 142 when the mean is 100 and the standard deviation is 15?
  
• What are the 2 z values that identify the middle 50% of the standard normal distribution?
  
• Using the integral test, how do you show whether #sum1/(n^2 - 1)# diverges or converges from n=4 to infinity?
  
• How do you find the z-score for which 80% of the distribution's area lies between -z and z?
  
• What is the taylor series in sigma notation of: #sin^2(x)#?
  
• How do you write an equation in standard form for a line which passes through (1, 3) and (4, 4)?