Descriptive statistics Inferential statistics

Statistics

• Statistics
• Descriptive statistics
• Inferential statistics
• Population
• A sample
• Measurement
• Sample data
• Descriptive statistics
• Inferential statistics
• Qualitative data
• Quantitative data
• Frequency
• Data frequency table
• Statistical variables
• Absolute Quantities
• Relative Quantities
• Law of Large Numbers
• Independen Variables
• Dependent Variables
• Measurement units of absolute quantities: natural, conditionally natural, monetary unit, complex.
• Types of representation of relative quantities

VARIABLES Independent OR Dependent?

• How does the amount of sleep impact test scores?
• A) Time spent on sleeping before the exam

B) Test Score

2) What is the effect of fast food on blood pressure?

A) Consumption of fast food

B) Blood Pressure

3) What is the effect of caffeine on sleep?

A) The amount of caffeine consumed

B) Dependent Variable: Sleep

A data set can also be presented by means of a data frequency table, a table in which each distinct value x is listed in the first row and its frequency f, which is the number of times the value x appears in the data set, is listed below it in the second row.

A data set can also be presented by means of a data frequency table, a table in which each distinct value x is listed in the first row and its frequency f, which is the number of times the value x appears in the data set, is listed below it in the second row.

EXERCISES