Midterm Review

Question 1

Which type of qualitative data may be computed for the mean?

Answer 1

None

Question 2

Which type of qualitative data may be computed for the median?

Answer 2

• Ordinal - Not nominal

Question 3

Which type of qualitative data may be computed for the mode?

Answer 3

• Ordinal - Nominal

Question 4

True or False

Answer 4

True

Question 5

What is the population mean for the binomial distribution?

Answer 5

E(X) = np

Question 6

What is the population variance for the binomial distribution?

Answer 6

Var(X) = np (1-p)

Question 7

What is the population mean and variance for the Poisson distribution?

Answer 7

E(X) = m = Var(X)

Question 8

How is the normal distribution different that the binomial and Poisson distributions?

Answer 8

• Binomial and Poisson distributions are discrete quantitative distributions
• The Normal distribution is a continuous quantitative distribution

Question 9

What is the equation for the standard error?

Answer 9

SE = S/(n)^(1/2)