A private equity firm is evaluating two alternative investments. Although the returns are random, each investment's return can be described using a normal distribution. The first investment has a mean return of $2,000,000 with a standard deviation of $175,000. The second investment has a mean return of $2, 175,000 with standard deviation of $600,000. Complete parts a through c below. a. How likely is it that the first investment will return $1,800,000 or less? The probability is]. Round to four decimal places as needed.)