Calculate the squared deviation, then find variance and lastly, calculate standard deviation. YOU MUST SHOW ALL WORK. No credit will be given for no work shown. Rate of Return (%) Average return (%) Squared Deviation 10 +50 +30 +20 -10 Deviation from Expected Retum (%) +40 +20 +10 0 ? ? 10 10 10 ? ? Variance = Average of squared deviations Standard deviation Square root of variance