Introduction to Statistics

Define Statistics ?

• Science of Collecting , organizing ,analyzing , interpreting Data

• Science of Data in a school

• Collection of ideas together

• Analyzing results of a study

What is Data

• Information

• Observations , counts, responses

• Collection of Data

What is population

• The Data of Questions and answers

• The Information of all elements

• The collection of all outcome , responses, measurements, or counts that are of interest.

What is Sample

• An Information required from a study

• A subset , or part, of a population.

• The Data of all elements

What is Statistic

• The Information of a set of data

• A numerical description of a statistic characteristic.

• The Name of items

• A numerical description of a sample characteristic.

What is Descriptive Statistics

• The branch of statistics that involves the organization, summarization, and display of data.

• A branch of Math which deals with information and how to present it

• A branch of Statistics which deals with Population and sample studies

Circle the level of measurement for each of the given data sets.

The daily average low temperatures for Juneau, Alaska for a week in January. 23.9° 24° 23.6° 23.8° 24.1° 23.5° 23.8°

• Nominal

• Ordinal

• Interval

• Ration

The levels of fire danger for the National Forest System are listed. Low, Moderate, High, Extreme

• Nominal

• Ordinal

• Interval

• Ration

The four departments at the department store are listed. Women’s Clothing, Men’s Clothing, Children’s Clothing, Shoes

• Ordinal

• Nominal

• Interval

• Ratio

Circle the method of data collection you would use to collect data for the study.

A study of the health of 213 seasonal flu patients at a hospital

• Observational Study

• Experiment

• Simulation

• Survey