(1) 隨機變數 X 的平均數 = __________，與變異數 = __________

題組內容

6. (12%)假如你投資$2萬元於某風險很高的加密比特幣，你有40%的機會可以拿回$5萬元；有25%的機會可以將投資的錢拿回來，有35%的機會一毛錢都拿不回來。令隨機變數X為你可能的淨回收(net payoff)：

2. Assuming a competitive market in the U.S., together with a supply function: $ q{s} = 400p - 400 $ and a demand function: $ q{d} = 2400 - 400p $. When the equilibrium price and quantity are reached, what are equilibrium price and quantity? (10%). Now due to Trump's reciprocal tariff policy, the authorities impose a $4 per-unit tax to be collected from sellers. We denote $ P{c} $ as the price paid by consumers after imposed tax and $ P{s} $ as the price received by producers after tax. Please solve the after-tax equilibrium quantity ($ q^{} $) and equilibrium prices for both consumers $ P{c}^{} $ and sellers $ P{s}^{*} $. (15%)

題組內容

(1) 隨機變數 \( X \) 的平均數 \( = \) ，與變異數 \( = \)

相關申論題

相關試卷

題組內容

(1) 隨機變數 \( X \) 的平均數 \( = \) __________，與變異數 \( = \) __________

相關申論題

相關試卷

(1) 隨機變數 \( X \) 的平均數 \( = \) ，與變異數 \( = \)