A. calculate the values of mean return and variance for the stock fund. when calculating the variance, use percents, not decimals. for example, if a return is 10%, use the value 10 in your variance calculations, not 0.10. (do not round intermediate calculations. round "mean return" value to 1 decimal place and "variance" to 2 decimal places.)

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)