GA Milestone Review: Investigating Data

Front

What is the shape of a distribution that is skewed left?

Back

A distribution that has a longer tail on the left side, indicating that the majority of the data points are concentrated on the right.

Front

How do you find the Interquartile Range (IQR)?

Back

Subtract the Lower Quartile (Q1) from the Upper Quartile (Q3).

Front

What is an outlier in a scatterplot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs.

Front

If Joe's line of best fit is y = 1.12x + 28.78, how tall was his puppy at 20 weeks?

Back

51.18 centimeters.

Front

What is correlation?

Back

Correlation indicates a relationship between two variables, where one does not necessarily cause the other.

Front

What does a skewed right distribution look like?

Back

A distribution with a longer tail on the right side, indicating that most data points are concentrated on the left.

Front

Define Upper Quartile (Q3).

Back

The median of the upper half of a data set, representing the 75th percentile.

Front

Define Lower Quartile (Q1).

Back

The median of the lower half of a data set, representing the 25th percentile.

Front

What is the purpose of a line of best fit?

Back

To provide a visual representation of the trend in a scatterplot, helping to predict values.

Front

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

Back

As one variable increases, the other variable also tends to increase.