Cumulative Assessment Review

Front

What is the formula to calculate hourly raise?

Back

Hourly Raise = (New Weekly Earnings - Old Weekly Earnings) / Hours Worked Per Week

Front

Define correlation in statistics.

Back

Correlation measures the strength and direction of a linear relationship between two variables.

Front

What does a strong positive linear relationship indicate?

Back

It indicates that as one variable increases, the other variable also increases in a consistent manner.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables using dots to represent data points.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation indicates that one variable directly affects the other.

Front

How do you represent a system of equations graphically?

Back

A system of equations can be represented by plotting each equation on the same graph and finding the intersection point(s).

Front

What is simple interest?

Back

Simple interest is calculated using the formula: Interest = Principal x Rate x Time.

Front

How do you calculate the time required for an investment to double using simple interest?

Back

Time = (Principal x Rate) / Interest, where Interest is the amount you want to achieve.

Front

What is the significance of residuals in a scatter plot?

Back

Residuals represent the difference between observed values and predicted values, indicating the accuracy of the model.

Front

What does it mean if two variables have a negative correlation?

Back

It means that as one variable increases, the other variable tends to decrease.