Medical Biology- Descriptive Stats Test

Quantitative Data

Data that can be measured with numbers.

Qualitative Data

Observations

Quantitative Data: Methods of Measurement

• Interval

• Ratio

Qualitative Data: Methods of Measurement

• Nominal

• Ordinal

Ratio Data

Data that is collected in a scale with an absolute zero.

Interval Data

Data that is collected in intervals without an absolute zero (ex: Celcius)

Quantitative Data Variation

Range or Standard Deviation

Qualitative Data Measurement

Frequency Distribution

Range

The range is the difference between the highest and lowest values in a data set. It is calculated by subtracting the minimum value from the maximum value.

Frequency Distribution

A frequency distribution is a summary of how often each value occurs in a dataset. It organizes data into categories or intervals, showing the number of occurrences (frequency) for each category, helping to visualize and analyze the distribution of data points.

Central Tendency

The three main measures of central tendency are the mean, median, and mode. The mean is the average of a data set, the median is the middle value when data is ordered, and the mode is the most frequently occurring value.

Quantitative Data Central Tendency

Mean, Median, Mode

Qualitative Data Central Tendency

Median and Mode

Mode

The value that shows up the most often in a data set when it is ordered.

Median

The number that is at the center of the data set.

Mean

The average.