An auto insurance company pays rebates averaging $86.18 annually with a standard deviation of $6.12 to drivers without an accident for the year. if 2560 drivers received a rebate, what is the expected value and standard deviation for the total rebates given? a) x(expected value)= $204,953.60; sd= $125.17 b)x=204,953.60; sd=$309.65 c)x=$220,620.80; sd=$125.17 d)x=$220,620.80; sd=$309.65