(solution) I have done the question and i have the answer but the teacher

(solution) I have done the question and i have the answer but the teacher

I have done the question and i have the answer but the teacher told me the answer is wrong. Please someone confirm to me where is the mistakes and make changes to it

ABLA DEHAI AL MEQBALI
Step 1 Providing details for Available Probability and return on each stock with each scenario respectiv
Return on respective stocks
A
B
17%
8%
-3% Probability
Boom
10%
Normal
30%
Recession
60% 6%
10%
19% Step 2 In this stage we identify the amount of money invested in each stock
Stock A
$
30,000
Stock B
$
20,000
Stock
$
40,000
Total Investment
$
90,000 Step 3 Calculating Expected Values, Deviation from expected value and Square of deviation Expected Return – Boom
Expected Return – Normal
Expected Return – Recession Step 4 $
30,000 $
20,000
Expected value
Probability
$
15,100.00
10%
$
28,400.10
30%
$
9,100.19
60% Calculating Expected Return of Portfolio, variance and Standard Deviations
Expected Return on Portpolio
Variance of the portpolio $
$ Standard deviation of the portfoli $ 15,490.14
74,514,218 8,632 Please note all the calculation formulaes are done unde EQBALI ck with each scenario respectively C
22%
15%
-25% $
40,000
Deviation from expected va Square of deviation
$
(390.14) 152212.34074
$
12,909.96 166666963.92
$
(6,389.95) 40831512.122 ulaes are done under the values