Maria and Jane set up a lemonade stand one summer to earn money for a trip to the beach. They noticed that the hotter the day, the more glasses of lemonade they sold. They mixed up the lemonade exactly the same way every day: the same amount of sugar, lemon juice, and water. They added ice to the glass when they poured the drink. They always used the same size glass. They decided to chart their sales in order to figure out how much lemonade to make each day, using the weather forecast as their guide. Identify the independent, dependent, and controlled variables in the girls' experimental data.

Question

08-10-2019
Chemistry

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Maria and Jane set up a lemonade stand one summer to earn money for a trip to the beach. They noticed that the hotter the day, the more glasses of lemonade they sold. They mixed up the lemonade exactly the same way every day: the same amount of sugar, lemon juice, and water. They added ice to the glass when they poured the drink. They always used the same size glass. They decided to chart their sales in order to figure out how much lemonade to make each day, using the weather forecast as their guide. Identify the independent, dependent, and controlled variables in the girls' experimental data.

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andreadebrayan50 andreadebrayan50 · Answer 1 · 2021-02-11T21:51:01+01:00

andreadebrayan50 andreadebrayan50

11-02-2021

Answer: CONTROLLED VARIABLE: glass size, amount of sugar, amount of lemon juice, water used, timing of adding ice

DEPENDENT VARIABLE: number of glasses sold

INDEPENDENT VARIABLE: daily temperature

Explanation: I had two attempts and the first one showed me the answer (USA test prep)

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shrutiagrawal1798 shrutiagrawal1798 · Answer 2 · 2022-03-18T07:20:03+01:00

The independent variable is weather, the dependent variable is sales, and the controlled variables are size of glass, and quantity of ice.

What are variables?

The variables in the statistical analysis were dependent which are altered by the other factors, independent variable that are not altered and controlled variables that can change according to the dependent and independent variables.

The weather and the temperature are not controlled by any factor. They are an independent variable.

The change in the temperature changes the number of glasses of lemonade sold. Thus, it has been a dependent variable

The size of the glass, and the ice poured in the lemonade, can be controlled according to the sales. Thus, these are controlled variable.

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