Answer: $25
Explanation:
Margin call = Initial price * (1 - initial margin) / ( 1 - maintenance margin)
Initial margin = Personal amount invested / Total amount invested
= 20,000 / (20,000 + 20,000)
= 0.5
Margin call = 30 * (1 - 0.5) / ( 1 - 0.4)
= 30 * 0.8333
= $25
Answer:
Dollar voting is an analogy that has been used to refer to the impact of consumer choice on producers' actions through the flow of consumer payments to producers for their goods and services.
The standard deviation of sample equals: 11
Explanation:
Given:
variance of sample (
) = 121
no, of observations made = 441
standard deviation = ?
By using the formula:
Standard deviation (S) = 
= 
= 
= 11
Hence the standard deviation is equal to 11.