Question 1

What is the symbol for a sample mean?

Accepted Answer

$\bar{x}$

Answer

$\mu$

Answer

$\sigma$

Answer

s

Question 2

What is the symbol for a population standard deviation?

Accepted Answer

$\sigma$

Answer

s

Answer

$\bar{x}$

Answer

$\mu$

Question 3

What is the symbol for sample variance?

Accepted Answer

$s^2$

Answer

s

Answer

$\sigma^2$

Answer

$\sigma$

Question 4

What is the symbol for probability of success?

Accepted Answer

p

Answer

S

Answer

F

Answer

q

Question 5

Event A = a student is 5'4" tall and Event B = a student has brown eyes.  What can we say about Events A and B?

Accepted Answer

Events A and B are independent.

Answer

Events A and B are mutually exclusive.

Question 6

Event A =  a student earned an A on a test in Statistics and Event B = a student earned an A on a test in History.  If we randomly select one student from a group, are events A and B disjoint?

Accepted Answer

Yes

Answer

No

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