Frequency Tables & Charts

Front

What is a frequency table?

Back

A frequency table is a way to organize data that shows how often each value occurs in a dataset.

Front

What is a relative frequency?

Back

Relative frequency is the ratio of the frequency of a particular value to the total number of values in the dataset, often expressed as a decimal or percentage.

Front

How do you calculate relative frequency?

Back

Relative frequency = (Frequency of a specific value) / (Total number of values).

Front

What is a relative frequency histogram?

Back

A relative frequency histogram is a graphical representation of the relative frequencies of different categories or ranges of data.

Front

What does it mean if relative frequencies do not add up to 1?

Back

It indicates that there may be an error in the data collection or calculation, as all relative frequencies should sum to 1.

Front

How can you convert relative frequency to percentage?

Back

Multiply the relative frequency by 100 to convert it to a percentage.

Front

What is the purpose of a frequency chart?

Back

A frequency chart visually represents the distribution of data points across different categories or ranges.

Front

What is the significance of the height of bars in a relative frequency histogram?

Back

The height of the bars represents the relative frequency of each category, indicating how common or rare each category is.

Front

What is the difference between frequency and relative frequency?

Back

Frequency counts the number of occurrences of a value, while relative frequency shows the proportion of that value in relation to the total.

Front

How do you interpret a relative frequency of 0.375 in a histogram?

Back

A relative frequency of 0.375 means that 37.5% of the total data falls within that category.