Stats Chapter 7

What variable represents proportion for a sample?

• p0
• p̂
• p
• P

What variable represents proportion for a population?

• p0
• p̂
• p
• x

Which variable represents the mean of a sample?

• μ
• s
• x̄
• σ

Which variable represents the mean of a population?

• σ
• s
• x̄
• μ

What is the variable for the standard deviation of a sample?

• σ
• SD
• s
• var

What is the variable for the standard deviation of a population?

• σ
• SD
• s
• var

A sample uses...

• statistics

• parameters

A population uses...

• statistics

• parameters

A distribution is approximately normal if it follow what rule?

• The law of large numbers
• The central limit theorem
• The large counts rule.

• The binomial distribution theorem
• The 10% rule.

What do you have to check 10% rule for?

• Variability

• Shape

• Mean

• Center