Alg Supp Unit 3 Study Guide

Front

What is a scatter plot?

Back

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

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, indicating the trend of the data points.

Front

What does causation mean in statistics?

Back

Causation refers to a relationship where one event (the cause) directly affects another event (the effect).

Front

How do you determine the median of a data set?

Back

To find the median, arrange the data in numerical order and identify the middle value. If there is an even number of values, the median is the average of the two middle values.

Front

What is a quadratic function?

Back

A quadratic function is a polynomial function of degree two, typically in the form f(x) = ax² + bx + c, where a, b, and c are constants.

Front

What is the difference between correlation and causation?

Back

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

Front

What is the purpose of creating a line of best fit?

Back

The purpose is to summarize the relationship between variables and make predictions based on the data.

Front

How can you identify outliers in a data set?

Back

Outliers can be identified as data points that fall significantly outside the range of the other data points, often more than 1.5 times the interquartile range.

Front

What is the median of the following data set: 3, 7, 8, 12, 14?

Back

The median is 8, as it is the middle value of the ordered data set.

Front

What does it mean if the median for boys is higher than for girls in a data set?

Back

It means that, on average, boys walked more miles than girls in the surveyed group.