Average monthly electric bill illinois

Asked by maham237 @ 16/02/2021 in Mathematics viewed by 394 People

When Stephan moved from Illinois to Florida, his average monthly electric bill increased from $83 to $102. He is curious to know whether his IL or FL electric bill is relatively more or less expensive, when compared to the distribution of electric bills for each state. 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. Compute the z-scores for Stephan's IL and FL electric bills. Round to three decimal places if necessary.

Answered by maham237 @ 16/02/2021

Air is made of molecules of matter, which have mass , and thus air also has mass. So, the correct answer as to why air has weight is B. the force of gravity acts on the air molecules' mass, and so weight is created.
You can actually feel the air's weight when the wind is blowing, for example.

Answered by maham237 @ 16/02/2021

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 : $z=\dfrac{X-mean}{standard\ deviaton}$

In Illinois, the mean monthly electric bill is $85, with a standard deviation of $3.20.

$z=\dfrac{83-85}{3.20}= -0.625$

In Florida, the mean monthly electric bill is $105, with a standard deviation of $4.00.

$z=\dfrac{105-102}{4}=\dfrac{3}{4}=0.75$

Hence, the z-scores for Stephan's IL and FL electric bills. are -0.625 and 0.75 respectively.

Take any three non-collinear points a b c and draw triangle a,b,c. through each vertex of the triangle draw a line parallel to the opposite side using ruler and compass

Asked by wiki @ 15/11/2022 in Mathematics viewed by 1561 persons

Average monthly electric bill illinois

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