True! companies examine the demographics of people in a population, then selectively pick out a demographic among the many for whom they want to target their products and services at
Answer:
a: 12.8%
Explanation:
Standard Deviation would be calculated with the probability approach since there is probability given in the question.
- Formula of Standard Deviation and the solution is given in the pictures below.
- Although ERR the required part to calculate Standard Deviation is calculated in the text.
Calculating ERR:
ERR= Sum of Probabilities × Rate of returns.
In our question = ERR= 0.2 × 30% + 0.5 × 10% + 0.3 × (-6%) = 0.128 = 12.8%
Thus, by putting all the values in the formula you will get the answer 12.8%.
Answer:
a)
Explanation:
money is a valuable because it is backed by gold
Answer:
The correct answer is option d.
Explanation:
A monopoly is a market structure where there is a single firm in the market with no close substitutes. The firm is a price maker. There is high barriers to entry in the market.
Similar to monopoly other imperfect competition such as monopolistic competition and oligopoly also have barriers to entry, and are price makers. But the firms in such markets have different demand curve than the market demand curve.
But in a monopoly there is only single firm, so the market demand curve is the same as individual firm's demand curve.