College Stats - Unit 1 Review

Front

What are the parts of the five number summary?

Back

Minimum, Quartile 1 (Q1), Median (Q2), Quartile 3 (Q3), Maximum.

Front

What is the term for the median of the lower half of the data?

Back

Lower Quartile (Q1).

Front

How do you find the class boundary for the class limit 20 - 22?

Back

The class boundary is 19.5 - 22.5.

Front

What is the class width if you want to create 9 classes from the data set: 324, 462, 540, 450, 638, 564, 670, 618, 624, 825, 540, 980, 1650, 1420, 670, 830, 912, 750, 1260, 450, 975, 670, 1100, 980, 750, 723, 705, 385, 475, 720?

Back

The class width should be 148.

Front

What is the formula to find class width?

Back

(max-min)/(# of classes), round up to the next integer.

Front

What does the term 'Median' refer to in statistics?

Back

The median is the middle value of a data set when it is ordered from least to greatest.

Front

What is the difference between Mean and Median?

Back

Mean is the average of all data points, while Median is the middle value.

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 is the purpose of the five number summary?

Back

The five number summary provides a quick overview of the distribution of a data set.

Front

How do you calculate the Range of a data set?

Back

Range = Maximum value - Minimum value.