Points inside (or below) the PPF are____________.
a. unattainable
b. attainable and efficient
c. attainable but inefficient
d. attainable and neither efficient nor inefficient

I say it is c, am I correct?

An increase in resources_____________.
a. shifts the PPF inward
b. shifts the PPF outward
c. moves the economy up a given PPF
d. moves the economy down a given PPF

I say it is b am I correct?

Which of the following is an illustration of the law of increasing opportunity costs?
a. As more cars are produced, the opportunity cost of each additional car is greater than for the preceding unit.
b. As more cars are produced, the opportunity cost of each additional car is less than for the preceding unit.
c. As more cars are produced, the opportunity cost of each additional car is the same as for the preceding unit.
d. People pay higher prices for cars the higher the costs of cars.

I say it is A, is that correct?

An economy exhibits efficiency if it produces ____________.
a. more than enough food to feed everyone
b. more goods and services in each successive year
c. maximum output with given resources and technology
ed. nough output so that no one lives in poverty

The opportunity cost of attending college is____________.
a. the money one spends on college tuition, books, and so forth
b.the highest valued alternative one forfeits to attend college
c. the least valued alternative one forfeits to attend college
d. equal to the salary one will earn when one graduates from college

Here is the question:
Q: Show with the aid of a form of the Nernst equation that when using a pH sensitive glass electrode and reference electrode that the measured potential is proportional to pH.
This is the answer I have:
Nernst equation:
E = E ° - 0.059/n * log Q
Q is the reaction quotient, active mass of pro

I have an excel spreadsheet with 2 question on it. They relate to the valuation of bonds. I have provided the answers, however I am not sure how the answers were derived. I need to know the formula used in Excel to arrive at these answers - or - the steps performed on the HP12C Financial Calculator to arrive at these answers. I

Each question has 5 possible answers of which only one is correct.
a) What is the probability the student will guess them all right?
b) The probability that he will guess AT MOST 12 correct.
c) The probability that he will guess at least one correct.
d) The mean and standard deviation of the number of the correct ans

A True-False test has 20 questions with each having 2 possible answers with one correct answer. Assume a student answers every question.
a. What is the probability of getting exactly 9 correct answers?
b. What is the probability of getting less than 6 correct answers?

A multiple - choice test has 30 questions and each one has five possible answers, of which one is correct.
If all answers were guesses, find the probability of getting exactly four correct answers.
=

A teacher makes 2 tests that each have:
-5 multiple choice questions with 4 possible answers
-10 true/false questions (2 possible answers)
If a students takes both tests. How many possible combinations of answers are there?
Would like to know how to figure this out. Is there a forumula? Does it involve factorials?

A True-False test has 20 questions with each having 2 possible answers with one correct. Assume a student randomly guesses the answer to every question.
a. What is the probability of getting exactly 9 correct answers?
b. What is the probability of getting less than 6 correct answers?