Population Sample Parameter Statistic Data Statistics

What is a sample?

• A tool used to collect statistical data

• Statistics collected from an entire population

• The factual information collected from a survey or other source

• A subgroup chosen from a population

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 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

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

These are the numbers that summarize data for an entire population.

• PARAMETER

• STATISTIC

• POPULATION

• SAMPLE

It is the entire group that you want to draw conclusions about.

• PARAMETER

• STATISTIC

• POPULATION

• SAMPLE

What formula is this?

• POPULATION STANDARD DEVIATION

• SAMPLE MEAN

• SAMPLE VARIATION

• POPULATION MEAN

5.     It is defined as the specific group that you will collect data from.

• A. POPULATION

• B. SAMPLE

• C. MEAN

• D. STATISTIC

8.     Sample mean is denoted by what symbol?

• 
• D. s

What formula is this?

• POPULATION MEAN

• POPULATION VARIANCE

• SAMPLE MEAN

• SAMPLE VARIANCE