Answer: The z-scores for Stephan's IL and FL electric bills. are -0.625 and 0.75 respectively.
Step-by-step explanation:
Given: Average monthly electric bill in Illinois = $83
Average monthly electric bill in Florida = $102
Formula of z : 
In Illinois, the mean monthly electric bill is $85, with a standard deviation of $3.20.
In Florida, the mean monthly electric bill is $105, with a standard deviation of $4.00.
Hence, the z-scores for Stephan's IL and FL electric bills. are -0.625 and 0.75 respectively.
Answer:
What I did not understand the question properly.Is it a original question
9514 1404 393
Answer:
350,000
Step-by-step explanation:
The vertex of the quadratic ax²+bx+c is located at x=-b/(2a). For the given profit function, the number of units (x) that will produce maximum profit is ...
x = -(140)/(2(-0.0002)) = 1,400,000/4
x = 350,000
350,000 units should be sold to maximize profit.
The linear equation that satisfy the data in the table is: A. y = −4x − 4.
<h3>How to Find the Linear Equation for a Data in a Table?</h3>
Given the table attached below, find the slope (m) = change in y / change in x using two pairs of values, say, (-1, 0) and (0, -4):
Slope (m) = (-4 - 0)/(0 - (-1)) = -4/1 = -4
Find the y-intercept (b), which is the value of y when x = 0. From the table, when x = 0, y = -4.
b = -4.
Substitute m = -4 and b = -4 into y = mx + b
y = -4x + (-4)
y = -4x - 4
The equation that satisfy the data is: A. y = −4x − 4.
Learn more about the linear equation on:
brainly.com/question/4074386
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