Answer:
SD = 0.0740270 or 7.40270 percent rounded off to 7.403 percent
Explanation:
To calculate the standard deviation of the investment, we must first calculate the expected or mean return of the investment. The expected or mean return can be calculated as follows,
r = pA * rA + pB * rB + ... + pN * rN
Where,
- pA, pB, ... represents the probability of state occurrence
- rA, rB, ... represents return A, return B and so on under each state
r = 0.2 * 0.16 + 0.4 * 0.12 + 0.2 * 0.05 + 0.2 * -0.05
r = 0.08 or 8%
The formula to calculate the standard deviation of a stock/investment is as follows,
SD = √pA * (rA - r)² + pB * (rB - r)² + ... + pN * (rN - r)²
SD = √0.2 * (0.16 - 0.08)² + 0.4 * (0.12 - 0.08)² + 0.2 * (0.05 - 0.08)² + 0.2 * (-0.05 - 0.08)²
SD = 0.0740270 or 7.40270 percent rounded off to 7.403 percent
The answer is d: to protect against high prices
Answer:
Stereotype threat
Explanation:
A. Stereotype threat
Explanation:
Stephanie's anxiety stems from Stereotype threat. She is way too concerned about how she appears to her audience. This has caused her to be nervous. She is in a predicament where she feels at risk of conforming to stereotypes about her gender. Especially because of her male coworker who told her, "don't be such a girl, attack that presentation! "
True- prices are supposed to be controlled by the changing equilibrium of supply and demand and when the government sets a price it may increase or decrease demand or supply in a way that would not naturally take place.
