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No, we can't use this equation as the scatter plot that it comes from has a weak correlation. This would create inaccurate data if we use these variables to predict water usage with local data. The relationship between the numbers are spurious and don't have enough of a correlation between one another to help predict accurate and trustworthy results. The numbers on the scatter plot was too spread out leaving no room for generalizations of a number of gallons used per groups of people per household.

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What i learned about water usage per household is that there are many varying factors that actually go to how much water is used per household. Many families no matter the size all have different levels of water use based on stuff like income, housing situation, etc. The relationship between the people per house and water usage is almost nonexistent considering other factors/variables or reasons that make more logical sense to get an accurate representation on how much water is actually used daily on average. The district data does not demonstrate that so it'l illogical to use.

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Toilet - 24%

Shower - 20%

Faucet - 19%

Washing Machine - 17%

Water Leakage - 12%

Other - 8%

The water in your household is directly correlated to how much is used in your area.

Population growth/decrease can determine how much water is used also, with Utah having a 33% growth through 2002-2015.

Toilet – 18.5 gallons per person, per day

Washing Machine – 15 gallons per person, per day

Shower – 11.6 gallons per person, per day

Faucet – 10.9 gallons per person, per day

Dishwasher – 1 gallon per person, per day

Enviornmental conditions can determine water usage, with 75% of the world being covered in water only 2.5% is drinkable.

Elevation, Leaking plumbing, and Broken pressure regulation can also determine water usage

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Average Water Usage in the United States

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The average family uses more than 300 gallons of water per day. Learn where most of this water usage comes from and what you can do to reduce your use.

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Confounding variables

pets/no pets, household income, personal habits, enviornment awareness, weather conditions, Elevation, Plumbing, Presser Regulation, Population, Covid 19

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No, the amount of people per household doesn't exactly link to how much gallons of water are used per day.  There is a spurious relationship with the district data having a weak correlation of 00.48. There are con-foudning variables determining how much water is used.

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The r(sqaure) shows me that the relationship of the least square residual line is weak to the actual scatter plot. With the line being exponential instead of a linear line, indicating that the relationship has certain circumstances that makes it looks like it works when in reality, the relationship is false.

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3 people, 331.72
My family is below the least square regression line, the residual seems to have some inaccuracies because of how much water used per day changes. This means that there is not average or estimate for how much gallons of water is used per day.

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y intercept: 209.8
The starting gallons used per household.

Slope: 53.1
For each person per household, the gallons increase by 53.1

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From the scatter plot, i see that there is a weak correlation of 0.048 meaning there isn't a prominent relationship between people per household, and gallons used per day.

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r 2 = 0.048
y = 53.1x + 209.8B
r: 0.219