AP Bio Statistics

Used to infer what is happening to data collected and population

• Mean

• Statistics

• Chi-Square

• Central Tendencies

The average of a data set

• Mean

• Median

• Mode

• Standard Deviation

Students in a biology class planted five tomato seeds in separate containers. They exposed the seeds to an artificial light source for 20 days. At the end, they measured the height of the plant. The data is shown in the table. What is the mean of the data?

• 55

• 61

• 72

• 103

The middle number in a range of data points. Useful in data sets that have measurements with extreme values or abnormal distribution.

• Mean

• Median

• Mode

• Range

What is the value that appears the most in a data set?

• MEan

• Median

• Mode

• Range

The measure of how far a data set diverges from the central tendency

• Mean

• Range

• Variability

• Standard Error

Larger range will have ___ variability and smaller range will have ___ variability

• Greater, less

• greater, greater

• less, greater

• less, less

A measure of how spread out the data is from the mean

• Variability

• Chi Squared

• Standard Deviation

• Standard Error

Which standard deviation graph would yield more accurate results?

• Taller and thinner

• Shorter and wider

Using the data set provided, calculate the standard deviation.

data set: 65, 52, 71, 56, 61

• 7.23

• 7.45

• 8.43

• 12.45