Simple Statistics

Set of methods to obtain data and then organize, summarize, present, analyze, interpret and reach conclusions based on the data

• Statistics

• Inferential Statistics

• Descriptive Statistics

Set of techniques and methods that serve to:

Organize

Analyze

Represent

• Statistics

• Inferential Statistics

• Descriptive Statistics

It is the complete set of all the elements that will be studied

• Inferential Data

• Population

• Sample

Chosen at random, 580 customers at a car dealership are contacted and asked their opinions of the service they received.
This is what type of sample?

• convenience

• stratified

• simple random sample

• cluster

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys, so she randomly selects five students from the class to survey, paying no attention to their gender.
This is a form of:

• Cluster Sampling

• Systematic Sampling

• Stratified Sampling

• Simple Random Sampling

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "100" is the ______

• Sample Size

• Population Size

• Statistic

• Parameter

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "575" is the ______

• Sample Size

• Population Size

• Statistic

• Parameter

This is what type of sample?

• cluster

• convenience

• systematic

• stratified

A teacher puts all her students' names in hat, then selects 3 names from the hat. These students will take a standardized test.

• Convenience

• Systematic

• Stratified

• Simple Random

If you survey every third house on a street, what type of sampling technique are you using?