Shirley Paul's 2-stock portfolio has a total value of $100,000. $37,500 is invested in Stock A with a beta of 0.75 and the remainder is invested in Stock B with a beta of 1.42. What is her portfolio's beta

Beta = 1.17

Explanation:

Giving the following information:

Shirley Paul's 2-stock portfolio has a total value of $100,000. $37,500 is invested in Stock A with a beta of 0.75 and the remainder is invested in Stock B with a beta of 1.42.

To calculate the Beta of the portfolio, we need to use the following formula:

Beta = (proportion of investment A*beta A) + (proportion of investment B*beta B)

Beta = (37,500/100,000) * 0.75 + (62,500/100,000) * 1.42

Beta = 1.17