The accompanying data sets represent the annual rate of return (in percent) of eight randomly sampled bond mutual funds, and the annual rate of return (in percent) of eight randomly sampled stock mutual funds. Use the information in the table below to complete parts (a) through (d). Then complete part (e). Click the icon to view the data. (a) Determine the mean and standard deviation of each data set. X Data tables The mean of the data set for bond mutual funds is 2.575 (Type an integer or decimal rounded to three decimal places as needed.) The standard deviation of the data set for bond mutual funds is 0.669221 Bond mutual Stock mutual funds funds (Type an integer or decimal rounded to three decimal places as needed.) 3.4 9.6 The mean of the data set for stock mutual funds is 8.2125 2.1 9.3 (Type an integer or decimal rounded to three decimal places as needed.) 2.6 2.9 8.6 18 8.3 The standard deviation of the data set for stock mutual funds is 0.90307 (Type an integer or decimal rounded to three decimal places as needed.) (b) Based on only the standard deviation, which data set has more spread? Print Done Based only on the standard deviation, stock mutual funds have more spread. (c) What proportion of the bond mutual funds are within one standard deviation of the mean? 0.625 Type an integer or decimal rounded to three decimal places as needed.) What proportion of the stock mutual funds are within one standard deviation of the mean? 0.625 Type an integer or decimal rounded to three decimal places as needed.) (d) The coefficient of variation, CV, is defined as the ratio of the standard deviation to the mean of a data set