Jones - Data distribution shapes

Front

What is the shape of a data set that has a longer tail on the right side?

Back

Skewed Right

Front

What is the shape of a data set that has a longer tail on the left side?

Back

Skewed Left

Front

What is the shape of a data set that is evenly distributed around the mean?

Back

Symmetrical

Front

What is the interquartile range (IQR)?

Back

The difference between the first quartile (Q1) and the third quartile (Q3) in a data set.

Front

If a data set has a median of 50 and the IQR is 4, what are the values of Q1 and Q3?

Back

Q1 = 48, Q3 = 52

Front

What does a skewed left distribution indicate about the data?

Back

It indicates that the majority of the data points are concentrated on the right side, with fewer lower values.

Front

What does a skewed right distribution indicate about the data?

Back

It indicates that the majority of the data points are concentrated on the left side, with fewer higher values.

Front

How do you calculate the interquartile range?

Back

IQR = Q3 - Q1

Front

What is a common visual representation of data distribution?

Back

Histogram

Front

What is the purpose of using box plots in data analysis?

Back

To visually summarize the distribution of a data set, showing the median, quartiles, and potential outliers.