What is jensen's alpha of a portfolio comprised of 45 percent portfolio a and 55 percent of portfolio b? portfolio average return standard deviation beta a 18.9% 21.6% 1.92 b 13.2 12.8 1.27 the risk-free rate is 3.1 percent and the market risk premium is 6.8 percent

answer: 457.14

step-by-step explanation:

205 - 45 = 160

160 / .35 = 457.142857

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step-by-step explanation:

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: