Do you mean .3 and .7?
Or .03 and .07?
In the second case you are implying that there is a .9 probability of making nothing.
In the first case, just multiply .3 with 3000
and add that to the product of .7 and -1000.
Which produces 9000-7000=2000.
By investing a person can make a profit of $3000 with a with a 3 percent probability or take a loss of $1000 with a 7 percent probability, what is the investors expected net gain for the year?
Need Help Please