The following data gives the market return and the Sun Pharma company scrips return for a particular period

(Rm),0.50,0.60,0.50,0.60,0.80,0.50,0.80,0.40,0.70],
(Ri), 0.30,0.60,0.40,0.50,0.60,0.30,0.70,0.50,0.60]

a) What is the Beta value of Sun Pharma company scrip?