If you invest $1,200 into an account with an interest rate of 8%, compounded monthly, about how long would it take for the accou
1 answer:
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Answer: The correct answer is: [B]:
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" " .
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Step-by-step explanation:
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Note: A number; "divided by a variable" ; is Not a "polynomial" .
Answer choice: [B]: " " ;
is a "number; divided by a "variable" ; and as such, is Not a "polynomial".
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Answer:
The value of ROE that will be exceeded by 78% of the firms is -1.77%.
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean and standard deviation
the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
The mean ROE for the firms studied was 14.93% and the standard deviation was 21.74%. This means that
What value of ROE will be exceeded by 78% of the firms?
This is the value of X when Z has a pvalue of 1-0.78 = 0.22.
This is
So:
The value of ROE that will be exceeded by 78% of the firms is -1.77%.