While driving to work, Araceli passes through 3 stop lights. The probability distribution of the number of lights she stops at is shown below. What is the
probability that Araceli has to stop at fewer than two lights for her ride to work?

Fess receives wages totaling $74,500 and has net earnings from self-employment amounting to $71,300. in determining her taxable self-employment income for the oasdi tax, how much of her net self-employment earnings must fess count? a. $74,500 b. $71,300 c. $53,900 d. $127,200 e. none of the above.

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i. e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i. e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.

Serious question, which is preferred in a business? pp or poopoo?