1. Mike deposits R1500 at the end of every month int o an account that earns 12.5% interest per year compounded monthly. After two years, he stops making monthly contributions, because the interest rate changes to 15% per year compounded every two months, if no withdrawals or deposits are made for 4 years, what will the balance be in this account?
2. If Z~N(0,1)with P(a