In: Statistics and Probability
A venture capitalist, willing to invest $1,000,000, has three
investments to choose from. The first investment, a software
company, has a 15% chance of returning $9,000,000 profit, a 24%
chance of returning $2,000,000 profit, and a 61% chance of losing
the million dollars. The second company, a hardware company, has a
11% chance of returning $5,000,000 profit, a 18% chance of
returning $1,000,000 profit, and a 71% chance of losing the million
dollars. The third company, a biotech firm, has a 6% chance of
returning $8,000,000 profit, a 43% of no profit or loss, and a 51%
chance of losing the million dollars.
Order the expected values from smallest to largest.
A) second, third, first
B) second, first, third
C) first, third, second
D) third, first, second
E) first, second, third
F )third, second, first
ANSWER::
Let's calculate the expected values for each company. Say X be the profit expected in Millions.
Company A:
E(X) = Σ P(X).X = 0.15*9 + 0.24*2 + 0.61*(-1) = 1.35 + 0.48 - 0.61 = $1.22M
Company B:
E(X) = Σ P(X).X = 0.11*5 + 0.18*1 + 0.71*(-1) = 0.55 + 0.18 - 0.71 = $0.02 M
Company C:
E(X) = Σ P(X).X = 0.06*8 + 0.43*0 + 0.51*(-1) = 0.48 + 0 - 0.51= $-0.03 M
Order of expected values from smallest to largest is:
B ($-0.03 M) < A($0.02 M) < C($1.22 M)
OPTION: (F) IS CORRECT ANSWER (third, second, first)
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