Are tech stocks more volatile than utility stocks? Let x be…
Are tech stocks more volatile than utility stocks? Let x be a random variable representing the annual percent return for a portfolio of technology stocks. Let y be a random variable representing the annual percent return for a portfolio of utility stocks. For the past few years, assume the following data. x: 12 0 38 23 31 25 26 –12 –12 –23 y: 10 –5 27 15 24 18 15 –5 –6 –10 The sample means for x and y are 10.80 and 8.30, respectively. Compute the coefficient of variation for each fund. Round your answers to the nearest tenth.