Extended Practice - Stats

Front

What is the upper quartile in a data set?

Back

The upper quartile (Q3) is the median of the upper half of a data set, representing the 75th percentile.

Front

How do you find the median of a data set?

Back

To find the median, first arrange the numbers in ascending order, then identify the middle number.

Front

When should you use the median instead of the mean?

Back

Use the median when the data set has outliers or is skewed, as it better represents the center.

Front

What is the total number of respondents in a survey if 33 people were polled?

Back

33 is the total number of respondents.

Front

How do you determine the number of students within a specific height range?

Back

Count the number of students whose heights fall between the specified range.

Front

What is a quartile in statistics?

Back

A quartile is a type of quantile that divides a data set into four equal parts.

Front

What does the term 'outlier' mean in a data set?

Back

An outlier is a data point that differs significantly from other observations in the data set.

Front

How do you calculate the mean of a data set?

Back

Add all the numbers together and divide by the total count of numbers.

Front

What is the difference between population and sample in statistics?

Back

A population includes all members of a defined group, while a sample is a subset of the population.

Front

What is the purpose of a box plot?

Back

A box plot visually represents the distribution of a data set, highlighting the median, quartiles, and outliers.