Scatterplots and Trend Lines Practice

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional grid.

Front

What does a trend line represent in a scatterplot?

Back

A trend line is a straight line that best represents the data points in a scatterplot, indicating the general direction of the data.

Front

How do you interpret the slope of a trend line?

Back

The slope of a trend line indicates the rate of change between the two variables; a positive slope means that as one variable increases, the other also increases.

Front

What is the purpose of making predictions using a scatterplot?

Back

Predictions using a scatterplot help estimate the value of one variable based on the value of another variable.

Front

How do you find the best fit line for a scatterplot?

Back

The best fit line is found using methods like least squares, which minimizes the distance between the data points and the line.

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small in a compact form, using powers of ten.

Front

Convert 0.0000378 to scientific notation.

Back

3.78 x 10^-5

Front

What is the formula to solve for x in a linear equation?

Back

To solve for x in a linear equation, isolate x on one side of the equation using inverse operations.

Front

What does it mean to order numbers from least to greatest?

Back

Ordering numbers from least to greatest means arranging them in ascending order based on their value.

Front

How do you identify the median in a set of numbers?

Back

The median is the middle number in a sorted list of numbers; if there is an even number of values, it is the average of the two middle numbers.