What would be the expected risk premium for a share with a given market risk premium being 20% higher than 12% last year and with no change is beta at 1.3? If boom, normalcy and recession have...

What would be the expected risk premium for a share with a given market risk premium being 20% higher than 12% last year and with no change is beta at 1.3?

If boom, normalcy and recession have respective probability of 30%, 50% and 20% and the earning during these three conditions is expected to be Rs 16, Rs 11 and Rs 6, respectively, find out the variance and the standard deviation.