4. For the following situations identify the quantities whose values va,y and the quantities whose values are constant. State possible units for measuring each of these quantities. Then define variables to represent the values of each varying quantity. a. A 10-inch candle burns for 2 hours. i. Identify at least one constant quantity and state the units of measurement. ii. Identify at least two varying quantities and state the units of measurement. iii. Define variables to represent the values of the va,ying quantities you defined in part (ii). b. A girl runs around a ¼-mile track. i. Identify at least one constant quantity and state the units of measurement. ii. Identify at least two varying quantities and state the units of measurement. iii. Define variables to represent the values of the varying quantities you defined in part (ii). c. A scuba diver descends from the surface of the water to a depth of 60 feet. i. Identify at least one constant quantity and state the units of measurement. ii. Identify at least two varying quantities and state the units of measurement. iii. Define variables to represent the values of the varying quantities you defined in part (ii)
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
4. For the following situations identify the quantities whose values va,y and the quantities whose values are constant. State possible units for measuring each of these quantities. Then define variables to represent the values of each varying quantity.
a. A 10-inch candle burns for 2 hours.
i. Identify at least one constant quantity and state the units of measurement.
ii. Identify at least two varying quantities and state the units of measurement.
iii. Define variables to represent the values of the va,ying quantities you defined in part (ii).
b. A girl runs around a ¼-mile track.
i. Identify at least one constant quantity and state the units of measurement.
ii. Identify at least two varying quantities and state the units of measurement.
iii. Define variables to represent the values of the varying quantities you defined in part (ii).
c. A scuba diver descends from the surface of the water to a depth of 60 feet.
i. Identify at least one constant quantity and state the units of measurement.
ii. Identify at least two varying quantities and state the units of measurement.
iii. Define variables to represent the values of the varying quantities you defined in part (ii)
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