The probability of return from an investment is as follows: (a) 20% probability of earning Rs 600 (b) 40% probability of earning Rs 800 (c) 30% probability of earning Rs 500 (d) 10% probability of...

The probability of return from an investment is as follows:

(a) 20% probability of earning Rs 600

(b) 40% probability of earning Rs 800

(c) 30% probability of earning Rs 500

(d) 10% probability of earning Rs 1000

Find the element of risk in the investment.