Statistics vs. Parameters Quiz

What is the symbol for the sample mean?

• 𝜇 (mu)

• 𝑥̅ (x-bar)

• 𝑠² (s squared)

• 𝜎 (sigma)

What is the parameter for variance?

• 𝑠² (s squared)

• 𝜇 (mu)

• 𝜎² (sigma squared)

• 𝑝̂ (p hat)

Which of the following represents the population standard deviation?

• 𝑠 (s)

• 𝜎 (sigma)

• 𝑥̅ (x-bar)

• 𝑝̂ (p hat)

What does the symbol 𝑝̂ (p hat) represent?

• Sample proportion

• Population proportion

• Sample variance

• Population mean

What is the difference between 𝑥̅ (x-bar) and 𝜇 (mu)?

• 𝑥̅ is a parameter, while 𝜇 is a statistic

• 𝑥̅ is a statistic, while 𝜇 is a parameter

• Both are parameters

• Both are statistics

Which symbol is used to denote sample variance?

• 𝜎² (sigma squared)

• 𝑠² (s squared)

• 𝜇 (mu)

• 𝜎 (sigma)

Which of the following is a parameter?

• 𝑥̅ (x-bar)

• 𝑝̂ (p hat)

• 𝜎 (sigma)

• 𝑠 (s)

What is the symbol for sample standard deviation?

• 𝜎² (sigma squared)

• 𝑠 (s)

• 𝑝̂ (p hat)

• 𝜇 (mu)