Answer:
Mean deviation is a statistical measure of the average deviation of values from the mean in a sample. It is calculated first by finding the average of the observations. The difference of each observation from the mean then is determined. The deviations then are averaged. This analysis is used to calculate how sporadic observations are from the mean.
Step-by-step explanation:
If there is an equation ill solve it for u
Based on the calculations, the interest rate on the stock in four (4) years is equal to 7.1%.
<u>Given the following data:</u>
Amount borrowed (Principal) = $22,000.
Simple interest, I = $78.40.
Time = 4 year.
To determine the interest rate on the stock in four (4) years:
<h3>How to calculate simple interest?</h3>
Mathematically, simple interest can be calculated by using this formula:
I = PRT
<u>Where:</u>
- S.I is the simple interest.
- P is the principal or starting amount.
- T is the time measured in years.
Making R the subject of formula, we have:
R = I/PT
Substituting the given parameters into the formula, we have;
R = 6260/(22,000 × 4)
R = 6260/(88,000)
Interest rate = 0.071 = 7.1%.
Read more on simple interest here: brainly.com/question/24341207
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The GCF is 3x so we have:-
3x(x^2 - 4x - 9) <---- answer
The marginal revenue of selling the eighth unit is $-4.
A monopolist is the only producer in the industry. A monopolist operates in a monopoly. The monopolist sets the market price of their products.
Marginal revenue is the change in total revenue when quantity sold increases by one unit.
Marginal revenue = change in total revenue / change in quantity sold
change in total revenue = ($3 x 8) - ($4 x 7) = $-4
change in quantity sold = 8 - 7 = 1
Marginal revenue = $-4 / 1 = $4
A similar question was answered here: brainly.com/question/15566669
